- 01 Feb, 2016 35 commits
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Julia Lawall authored
This mxl111sf_tuner_config structure is never modified, so declare it as const. There are some indentation changes to remain within 80 columns. Done with the help of Coccinelle. Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by:
Michael Ira Krufky <mkrufky@linuxtv.org> Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Julia Lawall authored
This sp8870_config structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by:
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Insu Yun authored
Since kzalloc can be failed, if not properly handled, NULL dereference could be happened. Signed-off-by:
Insu Yun <wuninsu@gmail.com> Signed-off-by:
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Insu Yun authored
Since kmalloc can be failed in memory pressure, if not properly handled, NULL dereference can be happend Signed-off-by:
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Markus Elfring authored
Let us return directly if the element "status" of the variable "buf" indicates "BUFSTAT_READY". A check repetition can be excluded for the variable "ret" at the end then. Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
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Markus Elfring authored
This issue was detected by using the Coccinelle software. 1. Let us return directly if a buffer allocation failed. 2. Delete the jump label "err" then. 3. Drop the explicit initialisation for the variable "ret" at the beginning. 4. Return zero as a constant at the end. Signed-off-by:
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Markus Elfring authored
Return constant integer values without storing them in the local variable "err" or "rc". Signed-off-by:
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Niklas Söderlund authored
Don't hide the error code. Signed-off-by:
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by:
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Ezequiel Garcia authored
Calling vb2_set_plane_payload is enough, there's no need to set the planes[] bytesused field. Remove it. Signed-off-by:
Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by:
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Geliang Tang authored
Use to_video_device() instead of open-coding it. Signed-off-by:
Geliang Tang <geliangtang@163.com> Signed-off-by:
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Nikola Forró authored
There are many dropped fields with some sources, leading to many redundant fields without counterparts. When this redundant field is odd, a new frame is pushed containing this odd field interleaved with whatever was left in the buffer, causing video artifacts. Do not push a new frame after processing every odd field, but do it only after those which come after an even field. Signed-off-by:
Nikola Forró <nikola.forro@gmail.com> Acked-by:
Lubomir Rintel <lkundrak@v3.sk> Signed-off-by:
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Hans Verkuil authored
Since saa7134 is now using vb2, there is no reason why we can't support dmabuf for this driver. Signed-off-by:
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Julia Lawall authored
The go7007_hpi_ops structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by:
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Mats Randgaard authored
Prevent unnecessary kernel log spamming. Signed-off-by:
Mats Randgaard <matrandg@cisco.com> Signed-off-by:
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Wu, Xia authored
Add dma_buf_put() to decrease refcount of the dmabuf in error path if DMABUF size is smaller than the requirement. Signed-off-by:
wu xia <xia.wu@intel.com> Acked-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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Julia Lawall authored
The as102_priv_ops_t structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by:
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Julia Lawall authored
The stv6110x_devctl structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by:
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Mauro Carvalho Chehab authored
Add the needed bits to make em28xx to create a media controller graph. Signed-off-by: -
Mauro Carvalho Chehab authored
Create a source pad and set the media controller type to the sensor. Signed-off-by: -
Mauro Carvalho Chehab authored
[ 1841.243670] divide error: 0000 [#1] SMP KASAN [ 1841.243994] Modules linked in: em28xx_rc rc_core tda18271 drxk em28xx_dvb dvb_core em28xx_alsa mt9v011 em28xx_v4l videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core em28xx tveeprom v4l2_common videodev media cpufreq_powersave cpufreq_conservative cpufreq_userspace cpufreq_stats parport_pc ppdev lp parport snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm iTCO_wdt iTCO_vendor_support irqbypass crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel sha256_ssse3 sha256_generic hmac drbg i915 snd_hda_codec_realtek snd_hda_codec_generic aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd btusb i2c_algo_bit snd_hda_intel btrtl drm_kms_helper btbcm evdev snd_hda_codec btintel psmouse bluetooth pcspkr snd_hwdep sg drm serio_raw [ 1841.244845] snd_hda_core snd_pcm mei_me rfkill snd_timer mei snd lpc_ich soundcore shpchp i2c_i801 mfd_core battery dw_dmac i2c_designware_platform i2c_designware_core dw_dmac_core video acpi_pad button tpm_tis tpm ext4 crc16 mbcache jbd2 dm_mod hid_generic usbhid sd_mod ahci libahci libata ehci_pci e1000e xhci_pci ptp scsi_mod ehci_hcd xhci_hcd pps_core fan thermal sdhci_acpi sdhci mmc_core i2c_hid hid [last unloaded: tveeprom] [ 1841.245342] CPU: 2 PID: 38 Comm: kworker/2:1 Tainted: G W 4.5.0-rc1+ #43 [ 1841.245413] Hardware name: /NUC5i7RYB, BIOS RYBDWi35.86A.0350.2015.0812.1722 08/12/2015 [ 1841.245503] Workqueue: events request_module_async [em28xx] [ 1841.245557] task: ffff88009df10000 ti: ffff88009df18000 task.ti: ffff88009df18000 [ 1841.245626] RIP: 0010:[<ffffffffa135a0ad>] [<ffffffffa135a0ad>] size_to_scale+0xed/0x2c0 [em28xx_v4l] [ 1841.245714] RSP: 0018:ffff88009df1faa8 EFLAGS: 00010246 [ 1841.245756] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8803bb933b38 [ 1841.245815] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8803bb933b00 [ 1841.245879] RBP: ffff88009df1fad8 R08: ffff8803bb933b3c R09: 1ffff10077726760 [ 1841.245944] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1841.246006] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8803b391a130 [ 1841.246071] FS: 0000000000000000(0000) GS:ffff8803c6900000(0000) knlGS:0000000000000000 [ 1841.246141] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1841.246194] CR2: 0000000001d97008 CR3: 00000003bdd85000 CR4: 00000000003406e0 [ 1841.246256] Stack: [ 1841.246278] 0000000000000246 ffff8803bb9321f0 ffff8803bb932270 ffffffffa136f7a0 [ 1841.246359] 0000000000000000 ffff8803bb932130 ffff88009df1fb20 ffffffffa13646a0 [ 1841.246439] ffffffffa127f206 ffff8803bb932130 ffff8803bb932130 ffff8803b391a130 [ 1841.246517] Call Trace: [ 1841.246548] [<ffffffffa13646a0>] em28xx_set_video_format+0x140/0x1e0 [em28xx_v4l] Signed-off-by: -
Mauro Carvalho Chehab authored
There are some devices, like Terratec Cinergy HTC, where while the device supports analog TV, the driver is not capable yet of handling it, because the analog TV driver was not written. So, don't bind the em28xx-v4l drivers on such devices. Signed-off-by: -
Mauro Carvalho Chehab authored
The tuner is at address 0x60. This address is not probed by default by tuner anymore, so we need to explicitly add it. Signed-off-by: -
Mauro Carvalho Chehab authored
If something bad happens during device registration, unregister the already registered devices. Without that, it will have lots of KASAN errors when udev would try to open the devices. Signed-off-by: -
Mauro Carvalho Chehab authored
The saa7115 driver is used on several em28xx-based devices. Now that we're about to add MC support to em28xx, we need to be sure that the saa711x demod will be properly mapped at MC. Signed-off-by: -
Mauro Carvalho Chehab authored
The tvp5150 is an analog TV decoder. Identify as such at the media graph, or otherwise devices using it would fail. That avoids the following warning: [ 1546.669139] usb 2-3.3: Entity type for entity tvp5150 5-005c was not initialized! Reviewed-by:
Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by:
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Mauro Carvalho Chehab authored
Add pads and set the device type when used with the media controller. Signed-off-by: -
Mauro Carvalho Chehab authored
The tvp5150 doesn't have just one pad. It has 3 ones: - IF input - Video output - VBI output Fix it and use the macros for the pad indexes. Reviewed-by:
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Mauro Carvalho Chehab authored
We also need to standardize the PAD index macros for demods, as they all should look the same in a media graph. Signed-off-by: -
Mauro Carvalho Chehab authored
The audio and video IF-PLL decoders have one sink and one source PAD. Add macro names for those pads and describe what kind of signals are represented at such pads. Signed-off-by: -
Mauro Carvalho Chehab authored
Very old hardware may have an analog stage tuner. Those hardware consists of a PLL that converts a RF signal into IF signals. Depending on the hardware, those video IF signal can be decoded directly by the bridge chipset. Most Conexant chips (bt8x8, cx2388x, etc) have internally the decoders for that. Yet, even on such hardware, the tuner may have internally its own TV multi-standard decoder like tda9887. The same happens with the audio IF signal, where some bridges are capable of receiving it, while others require an external IF-PLL sound decoder, like msp3400. Those external IF-PLL audio and video decoders have their own I2C address, and use different drivers to handle them. So, they're mapped as different subdevices on Linux. Thankfully, all modern hardware comes with an IC chip that has both the RF and the IF stages on it, being capable of decoding audio and video IF signals internally. Yet, as we need to support drivers that can work with either analog or silicon tuners, we need to add two entity types for those old hardware. Signed-off-by: -
Mauro Carvalho Chehab authored
Analog TV tuners have a separate output pad for the audio IF or audio sampled data. This pad is connected to a different chipset. Add an extra pad for it and improve the documentation. Signed-off-by: -
Mauro Carvalho Chehab authored
The customer PC hardware can be shipped with lots of different configurations, as vendors use to replace some of the chips on their hardware along the time. All drivers that support such devices are prepared to handle the hardware differences, using their own auto-probing logic. They do it in a way that number of inputs and outputs for a given hardware type doesn't change. Now that we're adding media controller capabilities to those drivers, we need to standardize the number of inputs and outputs for each hardware type, as we want to have a generic function at the V4L2 core that would create the links for the entities that are expected on such hardware. Such standard is already there for tuners, but tuner.h is not the best place to store such data, as we'll need to add definitions also for analog TV demodulators. Also, we'll need a place to put a set of MC handling functions. So, let's create a v4l2-mc.h to store such kind of definitions. Signed-off-by: -
Mauro Carvalho Chehab authored
The output of a tuner is not only IF frequencies. They may also output audio on some of its pins, and may even be a zero-IF tuner, with outputs a baseband. So, rename the PAD name to make it clearer and add a proper documentation about that at tuner.h. No functional changes. Signed-off-by: -
Mauro Carvalho Chehab authored
If struct xc2028_config is passed without a firmware name, the following trouble may happen: [11009.907205] xc2028 5-0061: type set to XCeive xc2028/xc3028 tuner [11009.907491] ================================================================== [11009.907750] BUG: KASAN: use-after-free in strcmp+0x96/0xb0 at addr ffff8803bd78ab40 [11009.907992] Read of size 1 by task modprobe/28992 [11009.907994] ============================================================================= [11009.907997] BUG kmalloc-16 (Tainted: G W ): kasan: bad access detected [11009.907999] ----------------------------------------------------------------------------- [11009.908008] INFO: Allocated in xhci_urb_enqueue+0x214/0x14c0 [xhci_hcd] age=0 cpu=3 pid=28992 [11009.908012] ___slab_alloc+0x581/0x5b0 [11009.908014] __slab_alloc+0x51/0x90 [11009.908017] __kmalloc+0x27b/0x350 [11009.908022] xhci_urb_enqueue+0x214/0x14c0 [xhci_hcd] [11009.908026] usb_hcd_submit_urb+0x1e8/0x1c60 [11009.908029] usb_submit_urb+0xb0e/0x1200 [11009.908032] usb_serial_generic_write_start+0xb6/0x4c0 [11009.908035] usb_serial_generic_write+0x92/0xc0 [11009.908039] usb_console_write+0x38a/0x560 [11009.908045] call_console_drivers.constprop.14+0x1ee/0x2c0 [11009.908051] console_unlock+0x40d/0x900 [11009.908056] vprintk_emit+0x4b4/0x830 [11009.908061] vprintk_default+0x1f/0x30 [11009.908064] printk+0x99/0xb5 [11009.908067] kasan_report_error+0x10a/0x550 [11009.908070] __asan_report_load1_noabort+0x43/0x50 [11009.908074] INFO: Freed in xc2028_set_config+0x90/0x630 [tuner_xc2028] age=1 cpu=3 pid=28992 [11009.908077] __slab_free+0x2ec/0x460 [11009.908080] kfree+0x266/0x280 [11009.908083] xc2028_set_config+0x90/0x630 [tuner_xc2028] [11009.908086] xc2028_attach+0x310/0x8a0 [tuner_xc2028] [11009.908090] em28xx_attach_xc3028.constprop.7+0x1f9/0x30d [em28xx_dvb] [11009.908094] em28xx_dvb_init.part.3+0x8e4/0x5cf4 [em28xx_dvb] [11009.908098] em28xx_dvb_init+0x81/0x8a [em28xx_dvb] [11009.908101] em28xx_register_extension+0xd9/0x190 [em28xx] [11009.908105] em28xx_dvb_register+0x10/0x1000 [em28xx_dvb] [11009.908108] do_one_initcall+0x141/0x300 [11009.908111] do_init_module+0x1d0/0x5ad [11009.908114] load_module+0x6666/0x9ba0 [11009.908117] SyS_finit_module+0x108/0x130 [11009.908120] entry_SYSCALL_64_fastpath+0x16/0x76 [11009.908123] INFO: Slab 0xffffea000ef5e280 objects=25 used=25 fp=0x (null) flags=0x2ffff8000004080 [11009.908126] INFO: Object 0xffff8803bd78ab40 @offset=2880 fp=0x0000000000000001 [11009.908130] Bytes b4 ffff8803bd78ab30: 01 00 00 00 2a 07 00 00 9d 28 00 00 01 00 00 00 ....*....(...... [11009.908133] Object ffff8803bd78ab40: 01 00 00 00 00 00 00 00 b0 1d c3 6a 00 88 ff ff ...........j.... [11009.908137] CPU: 3 PID: 28992 Comm: modprobe Tainted: G B W 4.5.0-rc1+ #43 [11009.908140] Hardware name: /NUC5i7RYB, BIOS RYBDWi35.86A.0350.2015.0812.1722 08/12/2015 [11009.908142] ffff8803bd78a000 ffff8802c273f1b8 ffffffff81932007 ffff8803c6407a80 [11009.908148] ffff8802c273f1e8 ffffffff81556759 ffff8803c6407a80 ffffea000ef5e280 [11009.908153] ffff8803bd78ab40 dffffc0000000000 ffff8802c273f210 ffffffff8155ccb4 [11009.908158] Call Trace: [11009.908162] [<ffffffff81932007>] dump_stack+0x4b/0x64 [11009.908165] [<ffffffff81556759>] print_trailer+0xf9/0x150 [11009.908168] [<ffffffff8155ccb4>] object_err+0x34/0x40 [11009.908171] [<ffffffff8155f260>] kasan_report_error+0x230/0x550 [11009.908175] [<ffffffff81237d71>] ? trace_hardirqs_off_caller+0x21/0x290 [11009.908179] [<ffffffff8155e926>] ? kasan_unpoison_shadow+0x36/0x50 [11009.908182] [<ffffffff8155f5c3>] __asan_report_load1_noabort+0x43/0x50 [11009.908185] [<ffffffff8155ea00>] ? __asan_register_globals+0x50/0xa0 [11009.908189] [<ffffffff8194cea6>] ? strcmp+0x96/0xb0 [11009.908192] [<ffffffff8194cea6>] strcmp+0x96/0xb0 [11009.908196] [<ffffffffa13ba4ac>] xc2028_set_config+0x15c/0x630 [tuner_xc2028] [11009.908200] [<ffffffffa13bac90>] xc2028_attach+0x310/0x8a0 [tuner_xc2028] [11009.908203] [<ffffffff8155ea78>] ? memset+0x28/0x30 [11009.908206] [<ffffffffa13ba980>] ? xc2028_set_config+0x630/0x630 [tuner_xc2028] [11009.908211] [<ffffffffa157a59a>] em28xx_attach_xc3028.constprop.7+0x1f9/0x30d [em28xx_dvb] [11009.908215] [<ffffffffa157aa2a>] ? em28xx_dvb_init.part.3+0x37c/0x5cf4 [em28xx_dvb] [11009.908219] [<ffffffffa157a3a1>] ? hauppauge_hvr930c_init+0x487/0x487 [em28xx_dvb] [11009.908222] [<ffffffffa01795ac>] ? lgdt330x_attach+0x1cc/0x370 [lgdt330x] [11009.908226] [<ffffffffa01793e0>] ? i2c_read_demod_bytes.isra.2+0x210/0x210 [lgdt330x] [11009.908230] [<ffffffff812e87d0>] ? ref_module.part.15+0x10/0x10 [11009.908233] [<ffffffff812e56e0>] ? module_assert_mutex_or_preempt+0x80/0x80 [11009.908238] [<ffffffffa157af92>] em28xx_dvb_init.part.3+0x8e4/0x5cf4 [em28xx_dvb] [11009.908242] [<ffffffffa157a6ae>] ? em28xx_attach_xc3028.constprop.7+0x30d/0x30d [em28xx_dvb] [11009.908245] [<ffffffff8195222d>] ? string+0x14d/0x1f0 [11009.908249] [<ffffffff8195381f>] ? symbol_string+0xff/0x1a0 [11009.908253] [<ffffffff81953720>] ? uuid_string+0x6f0/0x6f0 [11009.908257] [<ffffffff811a775e>] ? __kernel_text_address+0x7e/0xa0 [11009.908260] [<ffffffff8104b02f>] ? print_context_stack+0x7f/0xf0 [11009.908264] [<ffffffff812e9846>] ? __module_address+0xb6/0x360 [11009.908268] [<ffffffff8137fdc9>] ? is_ftrace_trampoline+0x99/0xe0 [11009.908271] [<ffffffff811a775e>] ? __kernel_text_address+0x7e/0xa0 [11009.908275] [<ffffffff81240a70>] ? debug_check_no_locks_freed+0x290/0x290 [11009.908278] [<ffffffff8104a24b>] ? dump_trace+0x11b/0x300 [11009.908282] [<ffffffffa13e8143>] ? em28xx_register_extension+0x23/0x190 [em28xx] [11009.908285] [<ffffffff81237d71>] ? trace_hardirqs_off_caller+0x21/0x290 [11009.908289] [<ffffffff8123ff56>] ? trace_hardirqs_on_caller+0x16/0x590 [11009.908292] [<ffffffff812404dd>] ? trace_hardirqs_on+0xd/0x10 [11009.908296] [<ffffffffa13e8143>] ? em28xx_register_extension+0x23/0x190 [em28xx] [11009.908299] [<ffffffff822dcbb0>] ? mutex_trylock+0x400/0x400 [11009.908302] [<ffffffff810021a1>] ? do_one_initcall+0x131/0x300 [11009.908306] [<ffffffff81296dc7>] ? call_rcu_sched+0x17/0x20 [11009.908309] [<ffffffff8159e708>] ? put_object+0x48/0x70 [11009.908314] [<ffffffffa1579f11>] em28xx_dvb_init+0x81/0x8a [em28xx_dvb] [11009.908317] [<ffffffffa13e81f9>] em28xx_register_extension+0xd9/0x190 [em28xx] [11009.908320] [<ffffffffa0150000>] ? 0xffffffffa0150000 [11009.908324] [<ffffffffa0150010>] em28xx_dvb_register+0x10/0x1000 [em28xx_dvb] [11009.908327] [<ffffffff810021b1>] do_one_initcall+0x141/0x300 [11009.908330] [<ffffffff81002070>] ? try_to_run_init_process+0x40/0x40 [11009.908333] [<ffffffff8123ff56>] ? trace_hardirqs_on_caller+0x16/0x590 [11009.908337] [<ffffffff8155e926>] ? kasan_unpoison_shadow+0x36/0x50 [11009.908340] [<ffffffff8155e926>] ? kasan_unpoison_shadow+0x36/0x50 [11009.908343] [<ffffffff8155e926>] ? kasan_unpoison_shadow+0x36/0x50 [11009.908346] [<ffffffff8155ea37>] ? __asan_register_globals+0x87/0xa0 [11009.908350] [<ffffffff8144da7b>] do_init_module+0x1d0/0x5ad [11009.908353] [<ffffffff812f2626>] load_module+0x6666/0x9ba0 [11009.908356] [<ffffffff812e9c90>] ? symbol_put_addr+0x50/0x50 [11009.908361] [<ffffffffa1580037>] ? em28xx_dvb_init.part.3+0x5989/0x5cf4 [em28xx_dvb] [11009.908366] [<ffffffff812ebfc0>] ? module_frob_arch_sections+0x20/0x20 [11009.908369] [<ffffffff815bc940>] ? open_exec+0x50/0x50 [11009.908374] [<ffffffff811671bb>] ? ns_capable+0x5b/0xd0 [11009.908377] [<ffffffff812f5e58>] SyS_finit_module+0x108/0x130 [11009.908379] [<ffffffff812f5d50>] ? SyS_init_module+0x1f0/0x1f0 [11009.908383] [<ffffffff81004044>] ? lockdep_sys_exit_thunk+0x12/0x14 [11009.908394] [<ffffffff822e6936>] entry_SYSCALL_64_fastpath+0x16/0x76 [11009.908396] Memory state around the buggy address: [11009.908398] ffff8803bd78aa00: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [11009.908401] ffff8803bd78aa80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [11009.908403] >ffff8803bd78ab00: fc fc fc fc fc fc fc fc 00 00 fc fc fc fc fc fc [11009.908405] ^ [11009.908407] ffff8803bd78ab80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [11009.908409] ffff8803bd78ac00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [11009.908411] ================================================================== In order to avoid it, let's set the cached value of the firmware name to NULL after freeing it. While here, return an error if the memory allocation fails. Signed-off-by: -
Mauro Carvalho Chehab authored
The em28xx driver have lots of different input types but only 4 of such types are actually used. The others are bogus. Remove them, in order to cleanup the driver. Signed-off-by:
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- 29 Jan, 2016 2 commits
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Laurent Pinchart authored
This patch enables the tvp5150 decoder driver to be used with the media controller framework by adding pad-level subdev operations and init the media entity pad. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
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Laurent Pinchart authored
The tvp5150 output video is interlaced so mark the format field as alternate and reduce the height to the half. [javier: split patch and write commit message] Signed-off-by:
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- 26 Jan, 2016 2 commits
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Mauro Carvalho Chehab authored
This patch were a workaround for a regression at tvp5150, but it causes troubles on devices with omap3+tvp5151 when working in non-parallel bus mode. Now that em28xx was fixed, we can get rid of that. This reverts commit 47de9bf8. Signed-off-by:
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Mauro Carvalho Chehab authored
On em28xx driver, s_stream subdev ops was not implemented properly. It was used only to disable stream, never enabling it. That was the root cause of the regression when we added support for s_stream on tvp5150 driver. With that, we can get rid of the changes on tvp5150 side, e. g. changeset 47de9bf8 ('[media] tvp5150: Fix breakage for serial usage'). Tested video output on em2820+tvp5150 on WinTV USB2 and video and/or vbi output on em288x+tvp5150 on HVR 950. Signed-off-by:
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- 25 Jan, 2016 1 commit
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Heiner Kallweit authored
At least on Zotac CI321 ACPI provides an ioport range for the wake up part but accessing these ioports has no effect. Instead the ioport base address is set to another value already (0xa20 in my case) and accessing this ioport range works. Therefore set a new ioport base address only if the current ioport base address is 0 (register reset default). The need to use the existing base address instead of trying to set an own one doesn't seem to be limited to this specific device as other drivers like hwmon/nct6775 do it the same way. This change was successfully tested on the mentioned device. And the change should be generic enough to not break the driver for other chips (however due to lack of appropriate hardware I wasn't able to test this). [mchehab@osg.samsung.com: Tested on Intel NUC NUC5i7RYB with BIOS version RYBDWi35.86A.0350.2015.0812.1722] Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Tested-by:
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