Merge intel.com:/home/lenb/bk/linux-2.6.4

into intel.com:/home/lenb/src/linux-acpi-test-2.6.4

Documentation/crypto/api-intro.txt

@@ -186,6 +186,7 @@ Original developers of the crypto algorithms:
   Dag Arne Osvik (Serpent)
   Brian Gladman (AES)
   Kartikey Mahendra Bhatt (CAST6)
+  Jon Oberheide (ARC4)
 
 SHA1 algorithm contributors:
   Jean-Francois Dive

Makefile

 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 4
-EXTRAVERSION =-rc1
+EXTRAVERSION =-rc2
 NAME=Feisty Dunnart
 
 # *DOCUMENTATION*

arch/arm/Makefile

@@ -23,6 +23,11 @@ CFLAGS		+= -mbig-endian
 AS		+= -EB
 LD		+= -EB
 AFLAGS		+= -mbig-endian
+else
+CFLAGS		+= -mlittle-endian
+AS		+= -EL
+LD		+= -EL
+AFLAGS		+= -mlittle-endian
 endif
 
 comma = ,

arch/arm/kernel/armksyms.c

@@ -187,6 +187,7 @@ EXPORT_SYMBOL(__arch_copy_from_user);
 EXPORT_SYMBOL(__arch_copy_to_user);
 EXPORT_SYMBOL(__arch_clear_user);
 EXPORT_SYMBOL(__arch_strnlen_user);
+EXPORT_SYMBOL(__arch_strncpy_from_user);
 
 	/* consistent area handling */
 EXPORT_SYMBOL(consistent_alloc);

arch/arm/mm/Kconfig

@@ -347,7 +347,7 @@ config CPU_BIG_ENDIAN
 	help
 	  Say Y if you plan on running a kernel in big-endian mode.
 	  Note that your board must be properly built and your board
-	  port must properly enable and big-endian related features
+	  port must properly enable any big-endian related features
 	  of your chipset/board/processor.
 
 config CPU_ICACHE_DISABLE

arch/sparc64/defconfig

@@ -100,14 +100,13 @@ CONFIG_PARPORT_1284=y
 CONFIG_PRINTER=m
 CONFIG_ENVCTRL=m
 CONFIG_DISPLAY7SEG=m
-CONFIG_WATCHDOG_CP1XXX=m
-CONFIG_WATCHDOG_RIO=m
 # CONFIG_CMDLINE_BOOL is not set
 
 #
 # Generic Driver Options
 #
 CONFIG_FW_LOADER=m
+# CONFIG_DEBUG_DRIVER is not set
 
 #
 # Graphics support
@@ -211,7 +210,6 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m
 # CONFIG_BLK_DEV_RAM is not set
 # CONFIG_BLK_DEV_INITRD is not set
-CONFIG_DCSSBLK=m
 
 #
 # ATA/ATAPI/MFM/RLL support
@@ -407,6 +405,8 @@ CONFIG_IEEE1394=m
 #
 # CONFIG_IEEE1394_VERBOSEDEBUG is not set
 CONFIG_IEEE1394_OUI_DB=y
+CONFIG_IEEE1394_EXTRA_CONFIG_ROMS=y
+CONFIG_IEEE1394_CONFIG_ROM_IP1394=y
 
 #
 # Device Drivers
@@ -1638,6 +1638,8 @@ CONFIG_WATCHDOG=y
 # Watchdog Device Drivers
 #
 CONFIG_SOFT_WATCHDOG=m
+CONFIG_WATCHDOG_CP1XXX=m
+CONFIG_WATCHDOG_RIO=m
 
 #
 # PCI-based Watchdog Cards
@@ -1646,6 +1648,11 @@ CONFIG_PCIPCWATCHDOG=m
 CONFIG_WDTPCI=m
 CONFIG_WDT_501_PCI=y
 
+#
+# USB-based Watchdog Cards
+#
+CONFIG_USBPCWATCHDOG=m
+
 #
 # Profiling support
 #

crypto/Kconfig

@@ -140,6 +140,16 @@ config CRYPTO_CAST6
 	  The CAST6 encryption algorithm (synonymous with CAST-256) is
 	  described in RFC2612.
 
+config CRYPTO_ARC4
+	tristate "ARC4 cipher algorithm"
+	depends on CRYPTO
+	help
+	  ARC4 cipher algorithm.
+
+	  This is a stream cipher using keys ranging from 8 bits to 2048
+	  bits in length.  ARC4 is commonly used in protocols such as WEP 
+	  and SSL.
+
 config CRYPTO_DEFLATE
 	tristate "Deflate compression algorithm"
 	depends on CRYPTO

crypto/Makefile

@@ -21,6 +21,7 @@ obj-$(CONFIG_CRYPTO_SERPENT) += serpent.o
 obj-$(CONFIG_CRYPTO_AES) += aes.o
 obj-$(CONFIG_CRYPTO_CAST5) += cast5.o
 obj-$(CONFIG_CRYPTO_CAST6) += cast6.o
+obj-$(CONFIG_CRYPTO_ARC4) += arc4.o
 obj-$(CONFIG_CRYPTO_DEFLATE) += deflate.o
 
 obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o

crypto/arc4.c

+/* 
+ * Cryptographic API
+ *
+ * ARC4 Cipher Algorithm
+ *
+ * Jon Oberheide <jon@focalhost.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/crypto.h>
+
+#define ARC4_MIN_KEY_SIZE	1
+#define ARC4_MAX_KEY_SIZE	256
+#define ARC4_BLOCK_SIZE		1
+
+struct arc4_ctx {
+	u8 S[256];
+	u8 x, y;
+};
+
+static int arc4_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
+{
+	struct arc4_ctx *ctx = ctx_arg;
+	int i, j = 0, k = 0;
+
+	ctx->x = 1;
+	ctx->y = 0;
+
+	for(i = 0; i < 256; i++)
+		ctx->S[i] = i;
+
+	for(i = 0; i < 256; i++)
+	{
+		u8 a = ctx->S[i];
+		j = (j + in_key[k] + a) & 0xff;
+		ctx->S[i] = ctx->S[j];
+		ctx->S[j] = a;
+		if(++k >= key_len)
+			k = 0;
+	}
+
+	/* TODO: dump the first 768 bytes generated as recommended
+	   by Ilya Mironov (http://eprint.iacr.org/2002/067/) to 
+	   increase the statistical strength of the state table */
+
+	return 0;
+}
+
+static void arc4_crypt(void *ctx_arg, u8 *out, const u8 *in)
+{
+	struct arc4_ctx *ctx = ctx_arg;
+
+	u8 *const S = ctx->S;
+	u8 x = ctx->x;
+	u8 y = ctx->y;
+
+	u8 a = S[x];
+	y = (y + a) & 0xff;
+	u8 b = S[y];
+	S[x] = b;
+	S[y] = a;
+	x = (x + 1) & 0xff;
+	*out++ = *in ^ S[(a + b) & 0xff];
+
+	ctx->x = x;
+	ctx->y = y;
+}
+
+static struct crypto_alg arc4_alg = {
+	.cra_name		=	"arc4",
+	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
+	.cra_blocksize		=	ARC4_BLOCK_SIZE,
+	.cra_ctxsize		=	sizeof(struct arc4_ctx),
+	.cra_module		=	THIS_MODULE,
+	.cra_list		=	LIST_HEAD_INIT(arc4_alg.cra_list),
+	.cra_u			=	{ .cipher = {
+	.cia_min_keysize	=	ARC4_MIN_KEY_SIZE,
+	.cia_max_keysize	=	ARC4_MAX_KEY_SIZE,
+	.cia_setkey	   	= 	arc4_set_key,
+	.cia_encrypt	 	=	arc4_crypt,
+	.cia_decrypt	  	=	arc4_crypt } }
+};
+
+static int __init arc4_init(void)
+{
+	return crypto_register_alg(&arc4_alg);
+}
+
+
+static void __exit arc4_exit(void)
+{
+	crypto_unregister_alg(&arc4_alg);
+}
+
+module_init(arc4_init);
+module_exit(arc4_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ARC4 Cipher Algorithm");
+MODULE_AUTHOR("Jon Oberheide <jon@focalhost.com>");

crypto/tcrypt.c

@@ -61,7 +61,7 @@ static char *tvmem;
 static char *check[] = {
 	"des", "md5", "des3_ede", "rot13", "sha1", "sha256", "blowfish",
 	"twofish", "serpent", "sha384", "sha512", "md4", "aes", "cast6", 
-	"deflate", NULL
+	"arc4", "deflate", NULL
 };
 
 static void
@@ -556,6 +556,10 @@ do_test(void)
 		test_cipher ("cast6", MODE_ECB, ENCRYPT, cast6_enc_tv_template, CAST6_ENC_TEST_VECTORS);
 		test_cipher ("cast6", MODE_ECB, DECRYPT, cast6_dec_tv_template, CAST6_DEC_TEST_VECTORS);
 
+		//ARC4
+		test_cipher ("arc4", MODE_ECB, ENCRYPT, arc4_enc_tv_template, ARC4_ENC_TEST_VECTORS);
+		test_cipher ("arc4x", MODE_ECB, DECRYPT, arc4_dec_tv_template, ARC4_DEC_TEST_VECTORS);
+
 		test_hash("sha384", sha384_tv_template, SHA384_TEST_VECTORS);
 		test_hash("sha512", sha512_tv_template, SHA512_TEST_VECTORS);
 		test_deflate();		
@@ -638,6 +642,11 @@ do_test(void)
 		test_cipher ("cast6", MODE_ECB, DECRYPT, cast6_dec_tv_template, CAST6_DEC_TEST_VECTORS);
 		break;
 
+	case 16:
+		test_cipher ("arc4", MODE_ECB, ENCRYPT, arc4_enc_tv_template, ARC4_ENC_TEST_VECTORS);
+		test_cipher ("arc4", MODE_ECB, DECRYPT, arc4_dec_tv_template, ARC4_DEC_TEST_VECTORS);
+		break;
+
 #ifdef CONFIG_CRYPTO_HMAC
 	case 100:
 		test_hmac("md5", hmac_md5_tv_template, HMAC_MD5_TEST_VECTORS);

crypto/tcrypt.h

@@ -1488,6 +1488,147 @@ struct cipher_testvec cast5_dec_tv_template[] =
 	},
 };
 
+/* 
+ * ARC4 test vectors from OpenSSL 
+ */
+#define ARC4_ENC_TEST_VECTORS	7
+#define ARC4_DEC_TEST_VECTORS	7
+
+struct cipher_testvec arc4_enc_tv_template[] =
+{
+	{
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.ilen	= 8,
+		.result	= { 0x75, 0xb7, 0x87, 0x80, 0x99, 0xe0, 0xc5, 0x96 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.ilen	= 8,
+		.result	= { 0x74, 0x94, 0xc2, 0xe7, 0x10, 0x4b, 0x08, 0x79 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.klen	= 8,
+		.input	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.ilen	= 8,
+		.result	= { 0xde, 0x18, 0x89, 0x41, 0xa3, 0x37, 0x5d, 0x3a },
+		.rlen	= 8,
+	}, {
+		.key	= { 0xef, 0x01, 0x23, 0x45},
+		.klen	= 4,
+		.input	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00, 0x00, 0x00 },
+		.ilen	= 20,
+		.result	= { 0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf,
+			    0xbd, 0x61, 0x5a, 0x11, 0x62, 0xe1, 0xc7, 0xba,
+			    0x36, 0xb6, 0x78, 0x58 },
+		.rlen	= 20,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78 },
+		.ilen	= 28,
+		.result	= { 0x66, 0xa0, 0x94, 0x9f, 0x8a, 0xf7, 0xd6, 0x89,
+			    0x1f, 0x7f, 0x83, 0x2b, 0xa8, 0x33, 0xc0, 0x0c,
+			    0x89, 0x2e, 0xbe, 0x30, 0x14, 0x3c, 0xe2, 0x87,
+			    0x40, 0x01, 0x1e, 0xcf },
+		.rlen	= 28,
+	}, {
+		.key	= { 0xef, 0x01, 0x23, 0x45 },
+		.klen	= 4,
+		.input	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00 },
+		.ilen	= 10,
+		.result	= { 0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf,
+			    0xbd, 0x61 },
+		.rlen	= 10,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+		            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.klen	= 16,
+		.input	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+		.ilen	= 8,
+		.result	= { 0x69, 0x72, 0x36, 0x59, 0x1B, 0x52, 0x42, 0xB1 },
+		.rlen	= 8,
+	},
+};
+
+struct cipher_testvec arc4_dec_tv_template[] =
+{
+	{
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x75, 0xb7, 0x87, 0x80, 0x99, 0xe0, 0xc5, 0x96 },
+		.ilen	= 8,
+		.result	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x74, 0x94, 0xc2, 0xe7, 0x10, 0x4b, 0x08, 0x79 },
+		.ilen	= 8,
+		.result	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.klen	= 8,
+		.input	= { 0xde, 0x18, 0x89, 0x41, 0xa3, 0x37, 0x5d, 0x3a },
+		.ilen	= 8,
+		.result	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0xef, 0x01, 0x23, 0x45},
+		.klen	= 4,
+		.input	= { 0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf,
+			    0xbd, 0x61, 0x5a, 0x11, 0x62, 0xe1, 0xc7, 0xba,
+			    0x36, 0xb6, 0x78, 0x58 },
+		.ilen	= 20,
+		.result	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00, 0x00, 0x00 },
+		.rlen	= 20,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x66, 0xa0, 0x94, 0x9f, 0x8a, 0xf7, 0xd6, 0x89,
+			    0x1f, 0x7f, 0x83, 0x2b, 0xa8, 0x33, 0xc0, 0x0c,
+			    0x89, 0x2e, 0xbe, 0x30, 0x14, 0x3c, 0xe2, 0x87,
+			    0x40, 0x01, 0x1e, 0xcf },
+		.ilen	= 28,
+		.result	= { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78 },
+		.rlen	= 28,
+	}, {
+		.key	= { 0xef, 0x01, 0x23, 0x45 },
+		.klen	= 4,
+		.input	= { 0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf,
+			    0xbd, 0x61 },
+		.ilen	= 10,
+		.result	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00 },
+		.rlen	= 10,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+		            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.klen	= 16,
+		.input	= { 0x69, 0x72, 0x36, 0x59, 0x1B, 0x52, 0x42, 0xB1 },
+		.ilen	= 8,
+		.result	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+		.rlen	= 8,
+	},
+};
+
+
 /*
  * Compression stuff.
  */

drivers/usb/gadget/inode.c

@@ -1812,7 +1812,6 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 		return -ENOMEM;
 	inode->i_op = &simple_dir_inode_operations;
 	if (!(d = d_alloc_root (inode))) {
-enomem:
 		iput (inode);
 		return -ENOMEM;
 	}
@@ -1823,12 +1822,15 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 	 */
 	dev = dev_new ();
 	if (!dev)
-		goto enomem;
+		return -ENOMEM;
+
 	dev->sb = sb;
 	if (!(inode = gadgetfs_create_file (sb, CHIP,
 				dev, &dev_init_operations,
-				&dev->dentry)))
-		goto enomem;
+				&dev->dentry))) {
+		put_dev(dev);
+		return -ENOMEM;
+	}
 
 	/* other endpoint files are available after hardware setup,
 	 * from binding to a controller.
@@ -1849,8 +1851,10 @@ static void
 gadgetfs_kill_sb (struct super_block *sb)
 {
 	kill_litter_super (sb);
+	if (the_device) {
 		put_dev (the_device);
 		the_device = 0;
+	}
 }
 
 /*----------------------------------------------------------------------*/

drivers/video/aty/radeon_base.c

@@ -135,7 +135,7 @@ static struct pci_device_id radeonfb_pci_table[] = {
 	CHIP_DEF(PCI_CHIP_R200_QM,	R200,	CHIP_HAS_CRTC2),
 	/* Mobility M7 */
 	CHIP_DEF(PCI_CHIP_RADEON_LW,	RV200,	CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
-	CHIP_DEF(PCI_CHIP_RADEON_LW,	RV200,	CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+	CHIP_DEF(PCI_CHIP_RADEON_LX,	RV200,	CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
 	/* 7500 */
 	CHIP_DEF(PCI_CHIP_RV200_QW,	RV200,	CHIP_HAS_CRTC2),
 	CHIP_DEF(PCI_CHIP_RV200_QX,	RV200,	CHIP_HAS_CRTC2),

fs/adfs/super.c

@@ -333,6 +333,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct object_info root_obj;
 	unsigned char *b_data;
 	struct adfs_sb_info *asb;
+	struct inode *root;
 
 	asb = kmalloc(sizeof(*asb), GFP_KERNEL);
 	if (!asb)
@@ -443,10 +444,11 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
 		asb->s_namelen = ADFS_F_NAME_LEN;
 	}
 
-	sb->s_root = d_alloc_root(adfs_iget(sb, &root_obj));
+	root = adfs_iget(sb, &root_obj);
+	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
 		int i;
-
+		iput(root);
 		for (i = 0; i < asb->s_map_size; i++)
 			brelse(asb->s_map[i].dm_bh);
 		kfree(asb->s_map);

fs/afs/super.c

@@ -280,7 +280,6 @@ static int afs_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 
  error:
-	dput(root);
 	iput(inode);
 	afs_put_volume(as->volume);
 	kfree(as);

fs/autofs4/inode.c

@@ -213,6 +213,9 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
 	 * Get the root inode and dentry, but defer checking for errors.
 	 */
 	root_inode = autofs4_get_inode(s, autofs4_mkroot(sbi));
+	if (!root_inode)
+		goto fail_free;
+
 	root_inode->i_op = &autofs4_root_inode_operations;
 	root_inode->i_fop = &autofs4_root_operations;
 	root = d_alloc_root(root_inode);
@@ -264,22 +267,13 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
 	 */
 fail_fput:
 	printk("autofs: pipe file descriptor does not contain proper ops\n");
-	/*
-	 * fput() can block, so we clear the super block first.
-	 */
 	fput(pipe);
 	/* fall through */
 fail_dput:
-	/*
-	 * dput() can block, so we clear the super block first.
-	 */
 	dput(root);
 	goto fail_free;
 fail_iput:
 	printk("autofs: get root dentry failed\n");
-	/*
-	 * iput() can block, so we clear the super block first.
-	 */
 	iput(root_inode);
 fail_free:
 	kfree(sbi);

fs/befs/linuxvfs.c

@@ -789,6 +789,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 	struct buffer_head *bh;
 	befs_sb_info *befs_sb;
 	befs_super_block *disk_sb;
+	struct inode *root;
 
 	const unsigned long sb_block = 0;
 	const off_t x86_sb_off = 512;
@@ -863,9 +864,10 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 	/* Set real blocksize of fs */
 	sb_set_blocksize(sb, (ulong) befs_sb->block_size);
 	sb->s_op = (struct super_operations *) &befs_sops;
-	sb->s_root =
-	    d_alloc_root(iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir))));
+	root = iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));
+	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
+		iput(root);
 		befs_error(sb, "get root inode failed");
 		goto unaquire_priv_sbp;
 	}

fs/coda/inode.c

@@ -195,6 +195,8 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
 	printk("coda_read_super: rootinode is %ld dev %s\n", 
 	       root->i_ino, root->i_sb->s_id);
 	sb->s_root = d_alloc_root(root);
+	if (!sb->s_root)
+		goto error;
         return 0;
 
  error:

fs/cramfs/inode.c

@@ -199,6 +199,7 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct cramfs_super super;
 	unsigned long root_offset;
 	struct cramfs_sb_info *sbi;
+	struct inode *root;
 
 	sbi = kmalloc(sizeof(struct cramfs_sb_info), GFP_KERNEL);
 	if (!sbi)
@@ -263,7 +264,14 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	/* Set it all up.. */
 	sb->s_op = &cramfs_ops;
-	sb->s_root = d_alloc_root(get_cramfs_inode(sb, &super.root));
+	root = get_cramfs_inode(sb, &super.root);
+	if (!root)
+		goto out;
+	sb->s_root = d_alloc_root(root);
+	if (!sb->s_root) {
+		iput(root);
+		goto out;
+	}
 	return 0;
 out:
 	kfree(sbi);

fs/efs/super.c

@@ -210,6 +210,7 @@ int efs_fill_super(struct super_block *s, void *d, int silent)
 {
 	struct efs_sb_info *sb;
 	struct buffer_head *bh;
+	struct inode *root;
 
  	sb = kmalloc(sizeof(struct efs_sb_info), GFP_KERNEL);
 	if (!sb)
@@ -266,10 +267,12 @@ int efs_fill_super(struct super_block *s, void *d, int silent)
 		s->s_flags |= MS_RDONLY;
 	}
 	s->s_op   = &efs_superblock_operations;
-	s->s_root = d_alloc_root(iget(s, EFS_ROOTINODE));
+	root = iget(s, EFS_ROOTINODE);
+	s->s_root = d_alloc_root(root);
  
 	if (!(s->s_root)) {
 		printk(KERN_ERR "EFS: get root inode failed\n");
+		iput(root);
 		goto out_no_fs;
 	}
 

fs/ext2/super.c

@@ -563,6 +563,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	struct buffer_head * bh;
 	struct ext2_sb_info * sbi;
 	struct ext2_super_block * es;
+	struct inode *root;
 	unsigned long block, sb_block = 1;
 	unsigned long logic_sb_block = get_sb_block(&data);
 	unsigned long offset = 0;
@@ -815,15 +816,17 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	 */
 	sb->s_op = &ext2_sops;
 	sb->s_export_op = &ext2_export_ops;
-	sb->s_root = d_alloc_root(iget(sb, EXT2_ROOT_INO));
-	if (!sb->s_root || !S_ISDIR(sb->s_root->d_inode->i_mode) ||
-	    !sb->s_root->d_inode->i_blocks || !sb->s_root->d_inode->i_size) {
-		if (sb->s_root) {
+	root = iget(sb, EXT2_ROOT_INO);
+	sb->s_root = d_alloc_root(root);
+	if (!sb->s_root) {
+		iput(root);
+		printk(KERN_ERR "EXT2-fs: get root inode failed\n");
+		goto failed_mount2;
+	}
+	if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
 		dput(sb->s_root);
 		sb->s_root = NULL;
 		printk(KERN_ERR "EXT2-fs: corrupt root inode, run e2fsck\n");
-		} else
-			printk(KERN_ERR "EXT2-fs: get root inode failed\n");
 		goto failed_mount2;
 	}
 	if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))

fs/ext3/super.c

@@ -1040,6 +1040,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	unsigned long offset = 0;
 	unsigned long journal_inum = 0;
 	unsigned long def_mount_opts;
+	struct inode *root;
 	int blocksize;
 	int hblock;
 	int db_count;
@@ -1354,16 +1355,17 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	 * so we can safely mount the rest of the filesystem now.
 	 */
 
-	sb->s_root = d_alloc_root(iget(sb, EXT3_ROOT_INO));
-	if (!sb->s_root || !S_ISDIR(sb->s_root->d_inode->i_mode) ||
-	    !sb->s_root->d_inode->i_blocks || !sb->s_root->d_inode->i_size) {
-		if (sb->s_root) {
+	root = iget(sb, EXT3_ROOT_INO);
+	sb->s_root = d_alloc_root(root);
+	if (!sb->s_root) {
+		printk(KERN_ERR "EXT3-fs: get root inode failed\n");
+		iput(root);
+		goto failed_mount3;
+	}
+	if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
 		dput(sb->s_root);
 		sb->s_root = NULL;
-			printk(KERN_ERR
-			       "EXT3-fs: corrupt root inode, run e2fsck\n");
-		} else
-			printk(KERN_ERR "EXT3-fs: get root inode failed\n");
+		printk(KERN_ERR "EXT3-fs: corrupt root inode, run e2fsck\n");
 		goto failed_mount3;
 	}
 

fs/freevxfs/vxfs_super.c

@@ -143,6 +143,7 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
 	struct vxfs_sb		*rsbp;
 	struct buffer_head	*bp = NULL;
 	u_long			bsize;
+	struct inode *root;
 
 	infp = kmalloc(sizeof(*infp), GFP_KERNEL);
 	if (!infp) {
@@ -208,8 +209,10 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
 	}
 
 	sbp->s_op = &vxfs_super_ops;
-	sbp->s_root = d_alloc_root(iget(sbp, VXFS_ROOT_INO));
+	root = iget(sbp, VXFS_ROOT_INO);
+	sbp->s_root = d_alloc_root(root);
 	if (!sbp->s_root) {
+		iput(root);
 		printk(KERN_WARNING "vxfs: unable to get root dentry.\n");
 		goto out_free_ilist;
 	}

fs/hfs/super.c

@@ -294,13 +294,15 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	sb->s_root = d_alloc_root(root_inode);
 	if (!sb->s_root)
-		goto bail_no_root;
+		goto bail_iput;
 
 	sb->s_root->d_op = &hfs_dentry_operations;
 
 	/* everything's okay */
 	return 0;
 
+bail_iput:
+	iput(root_inode);
 bail_no_root:
 	hfs_warn("hfs_fs: get root inode failed.\n");
 	hfs_mdb_put(sb);

fs/hfsplus/super.c

@@ -278,6 +278,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
 	struct hfsplus_sb_info *sbi;
 	hfsplus_cat_entry entry;
 	struct hfs_find_data fd;
+	struct inode *root;
 	struct qstr str;
 	int err = -EINVAL;
 
@@ -364,10 +365,12 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	/* Load the root directory */
-	sb->s_root = d_alloc_root(iget(sb, HFSPLUS_ROOT_CNID));
+	root = iget(sb, HFSPLUS_ROOT_CNID);
+	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
 		if (!silent)
 			printk("HFS+-fs: failed to load root directory\n");
+		iput(root);
 		goto cleanup;
 	}
 

fs/hpfs/super.c

@@ -448,6 +448,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 	struct hpfs_super_block *superblock;
 	struct hpfs_spare_block *spareblock;
 	struct hpfs_sb_info *sbi;
+	struct inode *root;
 
 	uid_t uid;
 	gid_t gid;
@@ -613,10 +614,11 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 	brelse(bh0);
 
 	hpfs_lock_iget(s, 1);
-	s->s_root = d_alloc_root(iget(s, sbi->sb_root));
+	root = iget(s, sbi->sb_root);
 	hpfs_unlock_iget(s);
-	if (!s->s_root || !s->s_root->d_inode) {
-		printk("HPFS: iget failed. Why???\n");
+	s->s_root = d_alloc_root(root);
+	if (!s->s_root) {
+		iput(root);
 		goto bail0;
 	}
 	hpfs_set_dentry_operations(s->s_root);
@@ -627,22 +629,24 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 
 	root_dno = hpfs_fnode_dno(s, sbi->sb_root);
 	if (root_dno)
-		de = map_dirent(s->s_root->d_inode, root_dno, "\001\001", 2, NULL, &qbh);
-	if (!root_dno || !de) hpfs_error(s, "unable to find root dir");
+		de = map_dirent(root, root_dno, "\001\001", 2, NULL, &qbh);
+	if (!de)
+		hpfs_error(s, "unable to find root dir");
 	else {
-		s->s_root->d_inode->i_atime.tv_sec = local_to_gmt(s, de->read_date);
-		s->s_root->d_inode->i_atime.tv_nsec = 0;
-		s->s_root->d_inode->i_mtime.tv_sec = local_to_gmt(s, de->write_date);
-		s->s_root->d_inode->i_mtime.tv_nsec = 0;
-		s->s_root->d_inode->i_ctime.tv_sec = local_to_gmt(s, de->creation_date);
-		s->s_root->d_inode->i_ctime.tv_nsec = 0;
-		hpfs_i(s->s_root->d_inode)->i_ea_size = de->ea_size;
-		hpfs_i(s->s_root->d_inode)->i_parent_dir = s->s_root->d_inode->i_ino;
-		if (s->s_root->d_inode->i_size == -1) s->s_root->d_inode->i_size = 2048;
-		if (s->s_root->d_inode->i_blocks == -1) s->s_root->d_inode->i_blocks = 5;
+		root->i_atime.tv_sec = local_to_gmt(s, de->read_date);
+		root->i_atime.tv_nsec = 0;
+		root->i_mtime.tv_sec = local_to_gmt(s, de->write_date);
+		root->i_mtime.tv_nsec = 0;
+		root->i_ctime.tv_sec = local_to_gmt(s, de->creation_date);
+		root->i_ctime.tv_nsec = 0;
+		hpfs_i(root)->i_ea_size = de->ea_size;
+		hpfs_i(root)->i_parent_dir = root->i_ino;
+		if (root->i_size == -1)
+			root->i_size = 2048;
+		if (root->i_blocks == -1)
+			root->i_blocks = 5;
+		hpfs_brelse4(&qbh);
 	}
-	if (de) hpfs_brelse4(&qbh);
-
 	return 0;
 
 bail4:	brelse(bh2);

fs/romfs/inode.c

@@ -115,6 +115,7 @@ static int romfs_fill_super(struct super_block *s, void *data, int silent)
 {
 	struct buffer_head *bh;
 	struct romfs_super_block *rsb;
+	struct inode *root;
 	int sz;
 
 	/* I would parse the options here, but there are none.. :) */
@@ -154,23 +155,25 @@ static int romfs_fill_super(struct super_block *s, void *data, int silent)
 	      strnlen(rsb->name, ROMFS_MAXFN) + 1 + ROMFH_PAD)
 	     & ROMFH_MASK;
 
-	brelse(bh);
-
 	s->s_op	= &romfs_ops;
+	root = iget(s, sz);
+	if (!root)
+		goto out;
+
 	s->s_root = d_alloc_root(iget(s, sz));
 
 	if (!s->s_root)
-		goto outnobh;
+		goto outiput;
 
-	/* Ehrhm; sorry.. :)  And thanks to Hans-Joachim Widmaier  :) */
-	if (0) {
+	brelse(bh);
+	return 0;
+
+outiput:
+	iput(root);
 out:
 	brelse(bh);
 outnobh:
 	return -EINVAL;
-	}
-
-	return 0;
 }
 
 /* That's simple too. */

include/asm-sparc/unistd.h

@@ -461,7 +461,6 @@ asmlinkage unsigned long sys_mmap2(
 				unsigned long addr, unsigned long len,
 				unsigned long prot, unsigned long flags,
 				unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_ioperm(unsigned long from, unsigned long num, int on);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,