- 21 Dec, 2019 40 commits
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Ivan Bornyakov authored
commit e9a9853c upstream. Ternary operator have lower precedence then bitwise or, so 'cdw10' was calculated wrong. Signed-off-by:
Ivan Bornyakov <brnkv.i1@gmail.com> Reviewed-by:
Max Gurtovoy <maxg@mellanox.com> Signed-off-by:
Keith Busch <keith.busch@intel.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Konstantin Khorenko authored
[ Upstream commit 5d603311 ] Fix the race between load and unload a kernel module. sys_delete_module() try_stop_module() mod->state = _GOING add_unformed_module() old = find_module_all() (old->state == _GOING => wait_event_interruptible()) During pre-condition finished_loading() rets 0 schedule() (never gets waken up later) free_module() mod->state = _UNFORMED list_del_rcu(&mod->list) (dels mod from "modules" list) return The race above leads to modprobe hanging forever on loading a module. Error paths on loading module call wake_up_all(&module_wq) after freeing module, so let's do the same on straight module unload. Fixes: 6e6de3de ("kernel/module.c: Only return -EEXIST for modules that have finished loading") Reviewed-by:
Prarit Bhargava <prarit@redhat.com> Signed-off-by:
Konstantin Khorenko <khorenko@virtuozzo.com> Signed-off-by:
Jessica Yu <jeyu@kernel.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Eran Ben Elisha authored
[ Upstream commit c431f859 ] SFF 8472 eeprom length is 512 bytes. Fix module info return value to support 512 bytes read. Fixes: ace329f4 ("net/mlx5e: ethtool, Remove unsupported SFP EEPROM high pages query") Signed-off-by:
Eran Ben Elisha <eranbe@mellanox.com> Reviewed-by:
Aya Levin <ayal@mellanox.com> Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Pavel Tikhomirov authored
[ Upstream commit 5fcaf698 ] I was investigating a crash in our Virtuozzo7 kernel which happened in in svcauth_unix_set_client. I found out that we access m_client field in ip_map structure, which was received from sunrpc_cache_lookup (we have a bit older kernel, now the code is in sunrpc_cache_add_entry), and these field looks uninitialized (m_client == 0x74 don't look like a pointer) but in the cache_head in flags we see 0x1 which is CACHE_VALID. It looks like the problem appeared from our previous fix to sunrpc (1): commit 4ecd55ea ("sunrpc: fix cache_head leak due to queued request") And we've also found a patch already fixing our patch (2): commit d58431ea ("sunrpc: don't mark uninitialised items as VALID.") Though the crash is eliminated, I think the core of the problem is not completely fixed: Neil in the patch (2) makes cache_head CACHE_NEGATIVE, before cache_fresh_locked which was added in (1) to fix crash. These way cache_is_valid won't say the cache is valid anymore and in svcauth_unix_set_client the function cache_check will return error instead of 0, and we don't count entry as initialized. But it looks like we need to remove cache_fresh_locked completely in sunrpc_cache_lookup: In (1) we've only wanted to make cache_fresh_unlocked->cache_dequeue so that cache_requests with no readers also release corresponding cache_head, to fix their leak. We with Vasily were not sure if cache_fresh_locked and cache_fresh_unlocked should be used in pair or not, so we've guessed to use them in pair. Now we see that we don't want the CACHE_VALID bit set here by cache_fresh_locked, as "valid" means "initialized" and there is no initialization in sunrpc_cache_add_entry. Both expiry_time and last_refresh are not used in cache_fresh_unlocked code-path and also not required for the initial fix. So to conclude cache_fresh_locked was called by mistake, and we can just safely remove it instead of crutching it with CACHE_NEGATIVE. It looks ideologically better for me. Hope I don't miss something here. Here is our crash backtrace: [13108726.326291] BUG: unable to handle kernel NULL pointer dereference at 0000000000000074 [13108726.326365] IP: [<ffffffffc01f79eb>] svcauth_unix_set_client+0x2ab/0x520 [sunrpc] [13108726.326448] PGD 0 [13108726.326468] Oops: 0002 [#1] SMP [13108726.326497] Modules linked in: nbd isofs xfs loop kpatch_cumulative_81_0_r1(O) xt_physdev nfnetlink_queue bluetooth rfkill ip6table_nat nf_nat_ipv6 ip_vs_wrr ip_vs_wlc ip_vs_sh nf_conntrack_netlink ip_vs_sed ip_vs_pe_sip nf_conntrack_sip ip_vs_nq ip_vs_lc ip_vs_lblcr ip_vs_lblc ip_vs_ftp ip_vs_dh nf_nat_ftp nf_conntrack_ftp iptable_raw xt_recent nf_log_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_TCPMSS xt_tcpmss vxlan ip6_udp_tunnel udp_tunnel xt_statistic xt_NFLOG nfnetlink_log dummy xt_mark xt_REDIRECT nf_nat_redirect raw_diag udp_diag tcp_diag inet_diag netlink_diag af_packet_diag unix_diag rpcsec_gss_krb5 xt_addrtype ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 ebtable_nat ebtable_broute nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_mangle ip6table_raw nfsv4 [13108726.327173] dns_resolver cls_u32 binfmt_misc arptable_filter arp_tables ip6table_filter ip6_tables devlink fuse_kio_pcs ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_nat iptable_nat nf_nat_ipv4 xt_comment nf_conntrack_ipv4 nf_defrag_ipv4 xt_wdog_tmo xt_multiport bonding xt_set xt_conntrack iptable_filter iptable_mangle kpatch(O) ebtable_filter ebt_among ebtables ip_set_hash_ip ip_set nfnetlink vfat fat skx_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass fuse pcspkr ses enclosure joydev sg mei_me hpwdt hpilo lpc_ich mei ipmi_si shpchp ipmi_devintf ipmi_msghandler xt_ipvs acpi_power_meter ip_vs_rr nfsv3 nfsd auth_rpcgss nfs_acl nfs lockd grace fscache nf_nat cls_fw sch_htb sch_cbq sch_sfq ip_vs em_u32 nf_conntrack tun br_netfilter veth overlay ip6_vzprivnet ip6_vznetstat ip_vznetstat [13108726.327817] ip_vzprivnet vziolimit vzevent vzlist vzstat vznetstat vznetdev vzmon vzdev bridge pio_kaio pio_nfs pio_direct pfmt_raw pfmt_ploop1 ploop ip_tables ext4 mbcache jbd2 sd_mod crc_t10dif crct10dif_generic mgag200 i2c_algo_bit drm_kms_helper scsi_transport_iscsi 8021q syscopyarea sysfillrect garp sysimgblt fb_sys_fops mrp stp ttm llc bnx2x crct10dif_pclmul crct10dif_common crc32_pclmul crc32c_intel drm dm_multipath ghash_clmulni_intel uas aesni_intel lrw gf128mul glue_helper ablk_helper cryptd tg3 smartpqi scsi_transport_sas mdio libcrc32c i2c_core usb_storage ptp pps_core wmi sunrpc dm_mirror dm_region_hash dm_log dm_mod [last unloaded: kpatch_cumulative_82_0_r1] [13108726.328403] CPU: 35 PID: 63742 Comm: nfsd ve: 51332 Kdump: loaded Tainted: G W O ------------ 3.10.0-862.20.2.vz7.73.29 #1 73.29 [13108726.328491] Hardware name: HPE ProLiant DL360 Gen10/ProLiant DL360 Gen10, BIOS U32 10/02/2018 [13108726.328554] task: ffffa0a6a41b1160 ti: ffffa0c2a74bc000 task.ti: ffffa0c2a74bc000 [13108726.328610] RIP: 0010:[<ffffffffc01f79eb>] [<ffffffffc01f79eb>] svcauth_unix_set_client+0x2ab/0x520 [sunrpc] [13108726.328706] RSP: 0018:ffffa0c2a74bfd80 EFLAGS: 00010246 [13108726.328750] RAX: 0000000000000001 RBX: ffffa0a6183ae000 RCX: 0000000000000000 [13108726.328811] RDX: 0000000000000074 RSI: 0000000000000286 RDI: ffffa0c2a74bfcf0 [13108726.328864] RBP: ffffa0c2a74bfe00 R08: ffffa0bab8c22960 R09: 0000000000000001 [13108726.328916] R10: 0000000000000001 R11: 0000000000000001 R12: ffffa0a32aa7f000 [13108726.328969] R13: ffffa0a6183afac0 R14: ffffa0c233d88d00 R15: ffffa0c2a74bfdb4 [13108726.329022] FS: 0000000000000000(0000) GS:ffffa0e17f9c0000(0000) knlGS:0000000000000000 [13108726.329081] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [13108726.332311] CR2: 0000000000000074 CR3: 00000026a1b28000 CR4: 00000000007607e0 [13108726.334606] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [13108726.336754] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [13108726.338908] PKRU: 00000000 [13108726.341047] Call Trace: [13108726.343074] [<ffffffff8a2c78b4>] ? groups_alloc+0x34/0x110 [13108726.344837] [<ffffffffc01f5eb4>] svc_set_client+0x24/0x30 [sunrpc] [13108726.346631] [<ffffffffc01f2ac1>] svc_process_common+0x241/0x710 [sunrpc] [13108726.348332] [<ffffffffc01f3093>] svc_process+0x103/0x190 [sunrpc] [13108726.350016] [<ffffffffc07d605f>] nfsd+0xdf/0x150 [nfsd] [13108726.351735] [<ffffffffc07d5f80>] ? nfsd_destroy+0x80/0x80 [nfsd] [13108726.353459] [<ffffffff8a2bf741>] kthread+0xd1/0xe0 [13108726.355195] [<ffffffff8a2bf670>] ? create_kthread+0x60/0x60 [13108726.356896] [<ffffffff8a9556dd>] ret_from_fork_nospec_begin+0x7/0x21 [13108726.358577] [<ffffffff8a2bf670>] ? create_kthread+0x60/0x60 [13108726.360240] Code: 4c 8b 45 98 0f 8e 2e 01 00 00 83 f8 fe 0f 84 76 fe ff ff 85 c0 0f 85 2b 01 00 00 49 8b 50 40 b8 01 00 00 00 48 89 93 d0 1a 00 00 <f0> 0f c1 02 83 c0 01 83 f8 01 0f 8e 53 02 00 00 49 8b 44 24 38 [13108726.363769] RIP [<ffffffffc01f79eb>] svcauth_unix_set_client+0x2ab/0x520 [sunrpc] [13108726.365530] RSP <ffffa0c2a74bfd80> [13108726.367179] CR2: 0000000000000074 Fixes: d58431ea ("sunrpc: don't mark uninitialised items as VALID.") Signed-off-by:
Pavel Tikhomirov <ptikhomirov@virtuozzo.com> Acked-by:
NeilBrown <neilb@suse.de> Signed-off-by:
J. Bruce Fields <bfields@redhat.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Tejun Heo authored
commit 8efe1223 upstream. Signed-off-by:
Tejun Heo <tj@kernel.org> Reported-by:
Qian Cai <cai@lca.pw> Fixes: def98c84 ("workqueue: Fix spurious sanity check failures in destroy_workqueue()") Cc: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ming Lei authored
commit d2c9be89 upstream. 8962842c ("blk-mq: avoid sysfs buffer overflow with too many CPU cores") avoids sysfs buffer overflow, and reserves one character for line break. However, the last snprintf() doesn't get correct 'size' parameter passed in, so fixed it. Fixes: 8962842c ("blk-mq: avoid sysfs buffer overflow with too many CPU cores") Signed-off-by:
Ming Lei <ming.lei@redhat.com> Signed-off-by:
Jens Axboe <axboe@kernel.dk> Cc: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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yangerkun authored
commit 565333a1 upstream. No need to wait for any commit once the page is fully truncated. Besides, it may confuse e.g. concurrent ext4_writepage() with the page still be dirty (will be cleared by truncate_pagecache() in ext4_setattr()) but buffers has been freed; and then trigger a bug show as below: [ 26.057508] ------------[ cut here ]------------ [ 26.058531] kernel BUG at fs/ext4/inode.c:2134! ... [ 26.088130] Call trace: [ 26.088695] ext4_writepage+0x914/0xb28 [ 26.089541] writeout.isra.4+0x1b4/0x2b8 [ 26.090409] move_to_new_page+0x3b0/0x568 [ 26.091338] __unmap_and_move+0x648/0x988 [ 26.092241] unmap_and_move+0x48c/0xbb8 [ 26.093096] migrate_pages+0x220/0xb28 [ 26.093945] kernel_mbind+0x828/0xa18 [ 26.094791] __arm64_sys_mbind+0xc8/0x138 [ 26.095716] el0_svc_common+0x190/0x490 [ 26.096571] el0_svc_handler+0x60/0xd0 [ 26.097423] el0_svc+0x8/0xc Run the procedure (generate by syzkaller) parallel with ext3. void main() { int fd, fd1, ret; void *addr; size_t length = 4096; int flags; off_t offset = 0; char *str = "12345"; fd = open("a", O_RDWR | O_CREAT); assert(fd >= 0); /* Truncate to 4k */ ret = ftruncate(fd, length); assert(ret == 0); /* Journal data mode */ flags = 0xc00f; ret = ioctl(fd, _IOW('f', 2, long), &flags); assert(ret == 0); /* Truncate to 0 */ fd1 = open("a", O_TRUNC | O_NOATIME); assert(fd1 >= 0); addr = mmap(NULL, length, PROT_WRITE | PROT_READ, MAP_SHARED, fd, offset); assert(addr != (void *)-1); memcpy(addr, str, 5); mbind(addr, length, 0, 0, 0, MPOL_MF_MOVE); } And the bug will be triggered once we seen the below order. reproduce1 reproduce2 ... | ... truncate to 4k | change to journal data mode | | memcpy(set page dirty) truncate to 0: | ext4_setattr: | ... | ext4_wait_for_tail_page_commit | | mbind(trigger bug) truncate_pagecache(clean dirty)| ... ... | mbind will call ext4_writepage() since the page still be dirty, and then report the bug since the buffers has been free. Fix it by return directly once offset equals to 0 which means the page has been fully truncated. Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
yangerkun <yangerkun@huawei.com> Link: https://lore.kernel.org/r/20190919063508.1045-1-yangerkun@huawei.comReviewed-by:
Jan Kara <jack@suse.cz> Signed-off-by:
Theodore Ts'o <tytso@mit.edu> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chen Jun authored
commit aa71ecd8 upstream. In 64bit system. sb->s_maxbytes of shmem filesystem is MAX_LFS_FILESIZE, which equal LLONG_MAX. If offset > LLONG_MAX - PAGE_SIZE, offset + len < LLONG_MAX in shmem_fallocate, which will pass the checking in vfs_fallocate. /* Check for wrap through zero too */ if (((offset + len) > inode->i_sb->s_maxbytes) || ((offset + len) < 0)) return -EFBIG; loff_t unmap_start = round_up(offset, PAGE_SIZE) in shmem_fallocate causes a overflow. Syzkaller reports a overflow problem in mm/shmem: UBSAN: Undefined behaviour in mm/shmem.c:2014:10 signed integer overflow: '9223372036854775807 + 1' cannot be represented in type 'long long int' CPU: 0 PID:17076 Comm: syz-executor0 Not tainted 4.1.46+ #1 Hardware name: linux, dummy-virt (DT) Call trace: dump_backtrace+0x0/0x2c8 arch/arm64/kernel/traps.c:100 show_stack+0x20/0x30 arch/arm64/kernel/traps.c:238 __dump_stack lib/dump_stack.c:15 [inline] ubsan_epilogue+0x18/0x70 lib/ubsan.c:164 handle_overflow+0x158/0x1b0 lib/ubsan.c:195 shmem_fallocate+0x6d0/0x820 mm/shmem.c:2104 vfs_fallocate+0x238/0x428 fs/open.c:312 SYSC_fallocate fs/open.c:335 [inline] SyS_fallocate+0x54/0xc8 fs/open.c:239 The highest bit of unmap_start will be appended with sign bit 1 (overflow) when calculate shmem_falloc.start: shmem_falloc.start = unmap_start >> PAGE_SHIFT. Fix it by casting the type of unmap_start to u64, when right shifted. This bug is found in LTS Linux 4.1. It also seems to exist in mainline. Link: http://lkml.kernel.org/r/1573867464-5107-1-git-send-email-chenjun102@huawei.comSigned-off-by:
Chen Jun <chenjun102@huawei.com> Reviewed-by:
Andrew Morton <akpm@linux-foundation.org> Cc: Hugh Dickins <hughd@google.com> Cc: Qian Cai <cai@lca.pw> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Will Deacon authored
commit ff34f3cc upstream. The 'a0' member of 'struct arm_smccc_res' is declared as 'unsigned long', however the Qualcomm SCM firmware interface driver expects to receive negative error codes via this field, so ensure that it's cast to 'long' before comparing to see if it is less than 0. Cc: <stable@vger.kernel.org> Reviewed-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jeff Mahoney authored
[ Upstream commit 60e4cf67 ] Since commit d0a5b995 (vfs: Add IOP_XATTR inode operations flag) extended attributes haven't worked on the root directory in reiserfs. This is due to reiserfs conditionally setting the sb->s_xattrs handler array depending on whether it located or create the internal privroot directory. It necessarily does this after the root inode is already read in. The IOP_XATTR flag is set during inode initialization, so it never gets set on the root directory. This commit unconditionally assigns sb->s_xattrs and clears IOP_XATTR on internal inodes. The old return values due to the conditional assignment are handled via open_xa_root, which now returns EOPNOTSUPP as the VFS would have done. Link: https://lore.kernel.org/r/20191024143127.17509-1-jeffm@suse.com CC: stable@vger.kernel.org Fixes: d0a5b995 ("vfs: Add IOP_XATTR inode operations flag") Signed-off-by:
Jeff Mahoney <jeffm@suse.com> Signed-off-by:
Jan Kara <jack@suse.cz> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Vincenzo Frascino authored
[ Upstream commit 55226345 ] clock_getres in the vDSO library has to preserve the same behaviour of posix_get_hrtimer_res(). In particular, posix_get_hrtimer_res() does: sec = 0; ns = hrtimer_resolution; and hrtimer_resolution depends on the enablement of the high resolution timers that can happen either at compile or at run time. Fix the powerpc vdso implementation of clock_getres keeping a copy of hrtimer_resolution in vdso data and using that directly. Fixes: a7f290da ("[PATCH] powerpc: Merge vdso's and add vdso support to 32 bits kernel") Cc: stable@vger.kernel.org Signed-off-by:
Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by:
Christophe Leroy <christophe.leroy@c-s.fr> Acked-by:
Shuah Khan <skhan@linuxfoundation.org> [chleroy: changed CLOCK_REALTIME_RES to CLOCK_HRTIMER_RES] Signed-off-by:
Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/a55eca3a5e85233838c2349783bcb5164dae1d09.1575273217.git.christophe.leroy@c-s.frSigned-off-by:
Sasha Levin <sashal@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Bart Van Assche authored
[ Upstream commit e6803efa ] This patch fixes several Coverity complaints about not always checking the qla2x00_wait_for_hba_online() return value. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
Bart Van Assche <bvanassche@acm.org> Tested-by:
Himanshu Madhani <hmadhani@marvell.com> Reviewed-by:
Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Bart Van Assche authored
[ Upstream commit c29282c6 ] Set the r??_data_len variables before using these instead of after. This patch fixes the following Coverity complaint: const: At condition req_data_len != rsp_data_len, the value of req_data_len must be equal to 0. const: At condition req_data_len != rsp_data_len, the value of rsp_data_len must be equal to 0. dead_error_condition: The condition req_data_len != rsp_data_len cannot be true. Cc: Himanshu Madhani <hmadhani@marvell.com> Fixes: a9b6f722 ("[SCSI] qla2xxx: Implementation of bidirectional.") # v3.7. Signed-off-by:
Bart Van Assche <bvanassche@acm.org> Tested-by:
Himanshu Madhani <hmadhani@marvell.com> Reviewed-by:
Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Bart Van Assche authored
[ Upstream commit ac452b8e ] Pass the correct session ID to find_sess_by_s_id() instead of passing an uninitialized variable. Cc: Himanshu Madhani <hmadhani@marvell.com> Fixes: 2d70c103 ("[SCSI] qla2xxx: Add LLD target-mode infrastructure for >= 24xx series") # v3.5. Signed-off-by:
Bart Van Assche <bvanassche@acm.org> Tested-by:
Himanshu Madhani <hmadhani@marvell.com> Reviewed-by:
Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Himanshu Madhani authored
[ Upstream commit 5d328de6 ] With debug kernel we see following wanings indicating memory leak. [28809.523959] WARNING: CPU: 3 PID: 6790 at lib/dma-debug.c:978 dma_debug_device_change+0x166/0x1d0 [28809.523964] pci 0000:0c:00.6: DMA-API: device driver has pending DMA allocations while released from device [count=5] [28809.523964] One of leaked entries details: [device address=0x00000002aefe4000] [size=8208 bytes] [mapped with DMA_BIDIRECTIONAL] [mapped as coherent] Fix this by unmapping DMA memory. Signed-off-by:
Quinn Tran <qutran@marvell.com> Signed-off-by:
Himanshu Madhani <hmadhani@marvell.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Krzysztof Kozlowski authored
[ Upstream commit 7f028caa ] In s3c64xx_eint_eint0_init() the for_each_child_of_node() loop is used with a break to find a matching child node. Although each iteration of for_each_child_of_node puts the previous node, but early exit from loop misses it. This leads to leak of device node. Cc: <stable@vger.kernel.org> Fixes: 61dd7261 ("pinctrl: Add pinctrl-s3c64xx driver") Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Jarkko Nikula authored
[ Upstream commit 287897f9 ] The MMC card detection GPIO polarity is active low on TAO3530, like in many other similar boards. Now the card is not detected and it is unable to mount rootfs from an SD card. Fix this by using the correct polarity. This incorrect polarity was defined already in the commit 30d95c6d ("ARM: dts: omap3: Add Technexion TAO3530 SOM omap3-tao3530.dtsi") in v3.18 kernel and later changed to use defined GPIO constants in v4.4 kernel by the commit 3a637e00 ("ARM: dts: Use defined GPIO constants in flags cell for OMAP2+ boards"). While the latter commit did not introduce the issue I'm marking it with Fixes tag due the v4.4 kernels still being maintained. Fixes: 3a637e00 ("ARM: dts: Use defined GPIO constants in flags cell for OMAP2+ boards") Cc: linux-stable <stable@vger.kernel.org> # 4.4+ Signed-off-by:
Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Miaoqing Pan authored
[ Upstream commit 08d80e4c ] On SMP platform, when continuously running wifi up/down, the napi poll can be scheduled during chip reset, which will call ath10k_pci_has_fw_crashed() to check the fw status. But in the reset period, the value from FW_INDICATOR_ADDRESS register will return 0xdeadbeef, which also be treated as fw crash. Fix the issue by moving chip reset after napi disabled. ath10k_pci 0000:01:00.0: firmware crashed! (guid 73b30611-5b1e-4bdd-90b4-64c81eb947b6) ath10k_pci 0000:01:00.0: qca9984/qca9994 hw1.0 target 0x01000000 chip_id 0x00000000 sub 168c:cafe ath10k_pci 0000:01:00.0: htt-ver 2.2 wmi-op 6 htt-op 4 cal otp max-sta 512 raw 0 hwcrypto 1 ath10k_pci 0000:01:00.0: failed to get memcpy hi address for firmware address 4: -16 ath10k_pci 0000:01:00.0: failed to read firmware dump area: -16 ath10k_pci 0000:01:00.0: Copy Engine register dump: ath10k_pci 0000:01:00.0: [00]: 0x0004a000 0 0 0 0 ath10k_pci 0000:01:00.0: [01]: 0x0004a400 0 0 0 0 ath10k_pci 0000:01:00.0: [02]: 0x0004a800 0 0 0 0 ath10k_pci 0000:01:00.0: [03]: 0x0004ac00 0 0 0 0 ath10k_pci 0000:01:00.0: [04]: 0x0004b000 0 0 0 0 ath10k_pci 0000:01:00.0: [05]: 0x0004b400 0 0 0 0 ath10k_pci 0000:01:00.0: [06]: 0x0004b800 0 0 0 0 ath10k_pci 0000:01:00.0: [07]: 0x0004bc00 1 0 1 0 ath10k_pci 0000:01:00.0: [08]: 0x0004c000 0 0 0 0 ath10k_pci 0000:01:00.0: [09]: 0x0004c400 0 0 0 0 ath10k_pci 0000:01:00.0: [10]: 0x0004c800 0 0 0 0 ath10k_pci 0000:01:00.0: [11]: 0x0004cc00 0 0 0 0 Tested HW: QCA9984,QCA9887,WCN3990 Signed-off-by:
Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Shirish S authored
[ Upstream commit 30aa3d26 ] The MC4_MISC thresholding quirk needs to be applied during S5 -> S0 and S3 -> S0 state transitions, which follow different code paths. Carve it out into a separate function and call it mce_amd_feature_init() where the two code paths of the state transitions converge. [ bp: massage commit message and the carved out function. ] Signed-off-by:
Shirish S <shirish.s@amd.com> Signed-off-by:
Borislav Petkov <bp@suse.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Yazen Ghannam <yazen.ghannam@amd.com> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/1547651417-23583-3-git-send-email-shirish.s@amd.comSigned-off-by:
Sasha Levin <sashal@kernel.org>
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Shirish S authored
[ Upstream commit c95b323d ] MC4_MISC thresholding is not supported on all family 0x15 processors, hence skip the x86_model check when applying the quirk. [ bp: massage commit message. ] Signed-off-by:
Shirish S <shirish.s@amd.com> Signed-off-by:
Borislav Petkov <bp@suse.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/1547106849-3476-2-git-send-email-shirish.s@amd.comSigned-off-by:
Sasha Levin <sashal@kernel.org>
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YueHaibing authored
[ Upstream commit cd0d465b ] Fix a static code checker warning: drivers/net/ethernet/intel/e100.c:1349 e100_load_ucode_wait() warn: passing zero to 'PTR_ERR' Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Tested-by:
Aaron Brown <aaron.f.brown@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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James Smart authored
[ Upstream commit 8b47ae69 ] Depending on the chipset, the number of NPIV vports may vary and be in excess of what most switches support (256). To avoid confusion with the users, limit the reported NPIV vports to 256. Additionally correct the 16G adapter which is reporting a bogus NPIV vport number if the link is down. Signed-off-by:
Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by:
James Smart <jsmart2021@gmail.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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H. Nikolaus Schaller authored
[ Upstream commit 2398c41d ] With a wl1251 child node of mmc3 in the device tree decoded in omap_hsmmc.c to handle special wl1251 initialization, we do no longer need to instantiate the mmc3 through pdata quirks. We also can remove the wlan regulator and reset/interrupt definitions and do them through device tree. Fixes: 81eef6ca ("mmc: omap_hsmmc: Use dma_request_chan() for requesting DMA channel") Signed-off-by:
H. Nikolaus Schaller <hns@goldelico.com> Cc: <stable@vger.kernel.org> # v4.7+ Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Filipe Manana authored
[ Upstream commit a0e248bb ] When doing a buffered write it's possible to leave the subv_writers counter of the root, used for synchronization between buffered nocow writers and snapshotting. This happens in an exceptional case like the following: 1) We fail to allocate data space for the write, since there's not enough available data space nor enough unallocated space for allocating a new data block group; 2) Because of that failure, we try to go to NOCOW mode, which succeeds and therefore we set the local variable 'only_release_metadata' to true and set the root's sub_writers counter to 1 through the call to btrfs_start_write_no_snapshotting() made by check_can_nocow(); 3) The call to btrfs_copy_from_user() returns zero, which is very unlikely to happen but not impossible; 4) No pages are copied because btrfs_copy_from_user() returned zero; 5) We call btrfs_end_write_no_snapshotting() which decrements the root's subv_writers counter to 0; 6) We don't set 'only_release_metadata' back to 'false' because we do it only if 'copied', the value returned by btrfs_copy_from_user(), is greater than zero; 7) On the next iteration of the while loop, which processes the same page range, we are now able to allocate data space for the write (we got enough data space released in the meanwhile); 8) After this if we fail at btrfs_delalloc_reserve_metadata(), because now there isn't enough free metadata space, or in some other place further below (prepare_pages(), lock_and_cleanup_extent_if_need(), btrfs_dirty_pages()), we break out of the while loop with 'only_release_metadata' having a value of 'true'; 9) Because 'only_release_metadata' is 'true' we end up decrementing the root's subv_writers counter to -1 (through a call to btrfs_end_write_no_snapshotting()), and we also end up not releasing the data space previously reserved through btrfs_check_data_free_space(). As a consequence the mechanism for synchronizing NOCOW buffered writes with snapshotting gets broken. Fix this by always setting 'only_release_metadata' to false at the start of each iteration. Fixes: 8257b2dc ("Btrfs: introduce btrfs_{start, end}_nocow_write() for each subvolume") Fixes: 7ee9e440 ("Btrfs: check if we can nocow if we don't have data space") CC: stable@vger.kernel.org # 4.4+ Reviewed-by:
Josef Bacik <josef@toxicpanda.com> Signed-off-by:
Filipe Manana <fdmanana@suse.com> Reviewed-by:
David Sterba <dsterba@suse.com> Signed-off-by:
David Sterba <dsterba@suse.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Nuno Sá authored
[ Upstream commit 4c35b7a5 ] The driver is defining debugfs entries by calling `adis16480_debugfs_init()`. However, those entries are attached to the iio_dev debugfs entry which won't exist if no debugfs_reg_access callback is provided. Fixes: 2f3abe6c ("iio:imu: Add support for the ADIS16480 and similar IMUs") Signed-off-by:
Nuno Sá <nuno.sa@analog.com> Cc: <Stable@vger.kernel.org> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Mathias Nyman authored
[ Upstream commit bd82873f ] spin_unlock_irqrestore() might be called with stale flags after reading port status, possibly restoring interrupts to a incorrect state. If a usb2 port just finished resuming while the port status is read the spin lock will be temporary released and re-acquired in a separate function. The flags parameter is passed as value instead of a pointer, not updating flags properly before the final spin_unlock_irqrestore() is called. Cc: <stable@vger.kernel.org> # v3.12+ Fixes: 8b3d4570 ("usb: Fix xHCI host issues on remote wakeup.") Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20191211142007.8847-7-mathias.nyman@linux.intel.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Mika Westerberg authored
[ Upstream commit ce91f1a4 ] When xHCI is part of Alpine or Titan Ridge Thunderbolt controller and the xHCI device is hot-removed as a result of unplugging a dock for example, the driver leaks memory it allocates for xhci->usb3_rhub.psi and xhci->usb2_rhub.psi in xhci_add_in_port() as reported by kmemleak: unreferenced object 0xffff922c24ef42f0 (size 16): comm "kworker/u16:2", pid 178, jiffies 4294711640 (age 956.620s) hex dump (first 16 bytes): 21 00 0c 00 12 00 dc 05 23 00 e0 01 00 00 00 00 !.......#....... backtrace: [<000000007ac80914>] xhci_mem_init+0xcf8/0xeb7 [<0000000001b6d775>] xhci_init+0x7c/0x160 [<00000000db443fe3>] xhci_gen_setup+0x214/0x340 [<00000000fdffd320>] xhci_pci_setup+0x48/0x110 [<00000000541e1e03>] usb_add_hcd.cold+0x265/0x747 [<00000000ca47a56b>] usb_hcd_pci_probe+0x219/0x3b4 [<0000000021043861>] xhci_pci_probe+0x24/0x1c0 [<00000000b9231f25>] local_pci_probe+0x3d/0x70 [<000000006385c9d7>] pci_device_probe+0xd0/0x150 [<0000000070241068>] really_probe+0xf5/0x3c0 [<0000000061f35c0a>] driver_probe_device+0x58/0x100 [<000000009da11198>] bus_for_each_drv+0x79/0xc0 [<000000009ce45f69>] __device_attach+0xda/0x160 [<00000000df201aaf>] pci_bus_add_device+0x46/0x70 [<0000000088a1bc48>] pci_bus_add_devices+0x27/0x60 [<00000000ad9ee708>] pci_bus_add_devices+0x52/0x60 unreferenced object 0xffff922c24ef3318 (size 8): comm "kworker/u16:2", pid 178, jiffies 4294711640 (age 956.620s) hex dump (first 8 bytes): 34 01 05 00 35 41 0a 00 4...5A.. backtrace: [<000000007ac80914>] xhci_mem_init+0xcf8/0xeb7 [<0000000001b6d775>] xhci_init+0x7c/0x160 [<00000000db443fe3>] xhci_gen_setup+0x214/0x340 [<00000000fdffd320>] xhci_pci_setup+0x48/0x110 [<00000000541e1e03>] usb_add_hcd.cold+0x265/0x747 [<00000000ca47a56b>] usb_hcd_pci_probe+0x219/0x3b4 [<0000000021043861>] xhci_pci_probe+0x24/0x1c0 [<00000000b9231f25>] local_pci_probe+0x3d/0x70 [<000000006385c9d7>] pci_device_probe+0xd0/0x150 [<0000000070241068>] really_probe+0xf5/0x3c0 [<0000000061f35c0a>] driver_probe_device+0x58/0x100 [<000000009da11198>] bus_for_each_drv+0x79/0xc0 [<000000009ce45f69>] __device_attach+0xda/0x160 [<00000000df201aaf>] pci_bus_add_device+0x46/0x70 [<0000000088a1bc48>] pci_bus_add_devices+0x27/0x60 [<00000000ad9ee708>] pci_bus_add_devices+0x52/0x60 Fix this by calling kfree() for the both psi objects in xhci_mem_cleanup(). Cc: <stable@vger.kernel.org> # 4.4+ Fixes: 47189098 ("xhci: parse xhci protocol speed ID list for usb 3.1 usage") Signed-off-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20191211142007.8847-2-mathias.nyman@linux.intel.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Henry Lin authored
[ Upstream commit f2c710f7 ] Xhci driver cannot call pci_set_power_state() on non-pci xhci host controllers. For example, NVIDIA Tegra XHCI host controller which acts as platform device with XHCI_SPURIOUS_WAKEUP quirk set in some platform hits this issue during shutdown. Cc: <stable@vger.kernel.org> Fixes: 638298dc ("xhci: Fix spurious wakeups after S5 on Haswell") Signed-off-by:
Henry Lin <henryl@nvidia.com> Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20191211142007.8847-4-mathias.nyman@linux.intel.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Steffen Maier authored
[ Upstream commit 100843f1 ] While v2.6.26 commit b75db731 ("[SCSI] zfcp: Add qtcb dump to hba debug trace") is right that we don't want to flood the (payload) trace ring buffer, we don't trace successful FCP command responses by default. So we can include the channel log for problem determination with failed responses of any FSF request type. Fixes: b75db731 ("[SCSI] zfcp: Add qtcb dump to hba debug trace") Fixes: a54ca0f6 ("[SCSI] zfcp: Redesign of the debug tracing for HBA records.") Cc: <stable@vger.kernel.org> #2.6.38+ Link: https://lore.kernel.org/r/e37597b5c4ae123aaa85fd86c23a9f71e994e4a9.1572018132.git.bblock@linux.ibm.comReviewed-by:
Benjamin Block <bblock@linux.ibm.com> Signed-off-by:
Steffen Maier <maier@linux.ibm.com> Signed-off-by:
Benjamin Block <bblock@linux.ibm.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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Dmitry Monakhov authored
commit 6ff33d99 upstream. Write only quotas which are dirty at entry. XFSTEST: https://github.com/dmonakhov/xfstests/commit/b10ad23566a5bf75832a6f500e1236084083cddc Link: https://lore.kernel.org/r/20191031103920.3919-1-dmonakhov@openvz.org CC: stable@vger.kernel.org Signed-off-by:
Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by:
Dmitry Monakhov <dmtrmonakhov@yandex-team.ru> Signed-off-by:
Jan Kara <jack@suse.cz> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chengguang Xu authored
commit e705f4b8 upstream. Check err when partial == NULL is meaningless because partial == NULL means getting branch successfully without error. CC: stable@vger.kernel.org Link: https://lore.kernel.org/r/20191105045100.7104-1-cgxu519@mykernel.netSigned-off-by:
Chengguang Xu <cgxu519@mykernel.net> Signed-off-by:
Jan Kara <jack@suse.cz> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Dmitry Monakhov authored
commit df4bb5d1 upstream. There is a race window where quota was redirted once we drop dq_list_lock inside dqput(), but before we grab dquot->dq_lock inside dquot_release() TASK1 TASK2 (chowner) ->dqput() we_slept: spin_lock(&dq_list_lock) if (dquot_dirty(dquot)) { spin_unlock(&dq_list_lock); dquot->dq_sb->dq_op->write_dquot(dquot); goto we_slept if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) { spin_unlock(&dq_list_lock); dquot->dq_sb->dq_op->release_dquot(dquot); dqget() mark_dquot_dirty() dqput() goto we_slept; } So dquot dirty quota will be released by TASK1, but on next we_sleept loop we detect this and call ->write_dquot() for it. XFSTEST: https://github.com/dmonakhov/xfstests/commit/440a80d4cbb39e9234df4d7240aee1d551c36107 Link: https://lore.kernel.org/r/20191031103920.3919-2-dmonakhov@openvz.org CC: stable@vger.kernel.org Signed-off-by:
Dmitry Monakhov <dmtrmonakhov@yandex-team.ru> Signed-off-by:
Jan Kara <jack@suse.cz> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ville Syrjälä authored
commit 6039f37d upstream. The bar values are little endian, not big endian. The pack function did it right but the unpack got it wrong. Fix it. Cc: stable@vger.kernel.org Cc: linux-media@vger.kernel.org Cc: Martin Bugge <marbugge@cisco.com> Cc: Hans Verkuil <hans.verkuil@cisco.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Fixes: 2c676f37 ("[media] hdmi: added unpack and logging functions for InfoFrames") Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190919132853.30954-1-ville.syrjala@linux.intel.comReviewed-by:
Thierry Reding <treding@nvidia.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alastair D'Silva authored
commit f9ec1116 upstream. When calling __kernel_sync_dicache with a size >4GB, we were masking off the upper 32 bits, so we would incorrectly flush a range smaller than intended. This patch replaces the 32 bit shifts with 64 bit ones, so that the full size is accounted for. Signed-off-by:
Alastair D'Silva <alastair@d-silva.org> Cc: stable@vger.kernel.org Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20191104023305.9581-3-alastair@au1.ibm.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Arnd Bergmann authored
commit 99817404 upstream. Going through the uses of timeval in the user space API, I noticed two bugs in ppdev that were introduced in the y2038 conversion: * The range check was accidentally moved from ppsettime to ppgettime * On sparc64, the microseconds are in the other half of the 64-bit word. Fix both, and mark the fix for stable backports. Cc: stable@vger.kernel.org Fixes: 3b9ab374 ("ppdev: convert to y2038 safe") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20191108203435.112759-8-arnd@arndb.deSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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H. Nikolaus Schaller authored
commit f6498b92 upstream. Pandora_wl1251_init_card was used to do special pdata based setup of the sdio mmc interface. This does no longer work with v4.7 and later. A fix requires a device tree based mmc3 setup. Therefore we move the special setup to omap_hsmmc.c instead of calling some pdata supplied init_card function. The new code checks for a DT child node compatible to wl1251 so it will not affect other MMC3 use cases. Generally, this code was and still is a hack and should be moved to mmc core to e.g. read such properties from optional DT child nodes. Fixes: 81eef6ca ("mmc: omap_hsmmc: Use dma_request_chan() for requesting DMA channel") Signed-off-by:
H. Nikolaus Schaller <hns@goldelico.com> Cc: <stable@vger.kernel.org> # v4.7+ [Ulf: Fixed up some checkpatch complaints] Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Krzysztof Kozlowski authored
commit a322b337 upstream. Several functions use for_each_child_of_node() loop with a break to find a matching child node. Although each iteration of for_each_child_of_node puts the previous node, but early exit from loop misses it. This leads to leak of device node. Cc: <stable@vger.kernel.org> Fixes: 9a2c1c3b ("pinctrl: samsung: Allow grouping multiple pinmux/pinconf nodes") Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Krzysztof Kozlowski authored
commit 6fbbcb05 upstream. In s3c24xx_eint_init() the for_each_child_of_node() loop is used with a break to find a matching child node. Although each iteration of for_each_child_of_node puts the previous node, but early exit from loop misses it. This leads to leak of device node. Cc: <stable@vger.kernel.org> Fixes: af99a750 ("pinctrl: Add pinctrl-s3c24xx driver") Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rafael J. Wysocki authored
commit b9ea0bae upstream. Certain ACPI-enumerated devices represented as platform devices in Linux, like fans, require special low-level power management handling implemented by their drivers that is not in agreement with the ACPI PM domain behavior. That leads to problems with managing ACPI fans during system-wide suspend and resume. For this reason, make acpi_dev_pm_attach() skip the affected devices by adding a list of device IDs to avoid to it and putting the IDs of the affected devices into that list. Fixes: e5cc8ef3 (ACPI / PM: Provide ACPI PM callback routines for subsystems) Reported-by:
Zhang Rui <rui.zhang@intel.com> Tested-by:
Todd Brandt <todd.e.brandt@linux.intel.com> Cc: 3.10+ <stable@vger.kernel.org> # 3.10+ Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Vamshi K Sthambamkadi authored
commit 627ead72 upstream. kmemleak reported backtrace: [<bbee0454>] kmem_cache_alloc_trace+0x128/0x260 [<6677f215>] i2c_acpi_install_space_handler+0x4b/0xe0 [<1180f4fc>] i2c_register_adapter+0x186/0x400 [<6083baf7>] i2c_add_adapter+0x4e/0x70 [<a3ddf966>] intel_gmbus_setup+0x1a2/0x2c0 [i915] [<84cb69ae>] i915_driver_probe+0x8d8/0x13a0 [i915] [<81911d4b>] i915_pci_probe+0x48/0x160 [i915] [<4b159af1>] pci_device_probe+0xdc/0x160 [<b3c64704>] really_probe+0x1ee/0x450 [<bc029f5a>] driver_probe_device+0x142/0x1b0 [<d8829d20>] device_driver_attach+0x49/0x50 [<de71f045>] __driver_attach+0xc9/0x150 [<df33ac83>] bus_for_each_dev+0x56/0xa0 [<80089bba>] driver_attach+0x19/0x20 [<cc73f583>] bus_add_driver+0x177/0x220 [<7b29d8c7>] driver_register+0x56/0xf0 In i2c_acpi_remove_space_handler(), a leak occurs whenever the "data" parameter is initialized to 0 before being passed to acpi_bus_get_private_data(). This is because the NULL pointer check in acpi_bus_get_private_data() (condition->if(!*data)) returns EINVAL and, in consequence, memory is never freed in i2c_acpi_remove_space_handler(). Fix the NULL pointer check in acpi_bus_get_private_data() to follow the analogous check in acpi_get_data_full(). Signed-off-by:
Vamshi K Sthambamkadi <vamshi.k.sthambamkadi@gmail.com> [ rjw: Subject & changelog ] Cc: All applicable <stable@vger.kernel.org> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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