[PATCH] kfree cleanup: fs

This is the fs/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in fs/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

39 files changed, 137 insertions, 245 deletions

diff --git a/fs/9p/trans_sock.c b/fs/9p/trans_sock.c
index 01e26f0..a93c2bf 100644
--- a/fs/9p/trans_sock.c
+++ b/fs/9p/trans_sock.c
@@ -269,8 +269,7 @@ static void v9fs_sock_close(struct v9fs_transport *trans)
 		dprintk(DEBUG_TRANS, "socket closed\n");
 	}
 
-	if (ts)
-		kfree(ts);
+	kfree(ts);
 
 	trans->priv = NULL;
 }
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 9c30807..aaec015 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -35,8 +35,7 @@ affs_put_super(struct super_block *sb)
 		mark_buffer_dirty(sbi->s_root_bh);
 	}
 
-	if (sbi->s_prefix)
-		kfree(sbi->s_prefix);
+	kfree(sbi->s_prefix);
 	affs_free_bitmap(sb);
 	affs_brelse(sbi->s_root_bh);
 	kfree(sbi);
@@ -198,10 +197,9 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s
 			*mount_opts |= SF_MUFS;
 			break;
 		case Opt_prefix:
-			if (*prefix) {		/* Free any previous prefix */
-				kfree(*prefix);
-				*prefix = NULL;
-			}
+			/* Free any previous prefix */
+			kfree(*prefix);
+			*prefix = NULL;
 			*prefix = match_strdup(&args[0]);
 			if (!*prefix)
 				return 0;
@@ -462,11 +460,9 @@ got_root:
 out_error:
 	if (root_inode)
 		iput(root_inode);
-	if (sbi->s_bitmap)
-		kfree(sbi->s_bitmap);
+	kfree(sbi->s_bitmap);
 	affs_brelse(root_bh);
-	if (sbi->s_prefix)
-		kfree(sbi->s_prefix);
+	kfree(sbi->s_prefix);
 	kfree(sbi);
 	sb->s_fs_info = NULL;
 	return -EINVAL;
diff --git a/fs/afs/file.c b/fs/afs/file.c
index f53971a..150b192 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -265,8 +265,7 @@ static int afs_file_releasepage(struct page *page, gfp_t gfp_flags)
 		set_page_private(page, 0);
 		ClearPagePrivate(page);
 
-		if (pageio)
-			kfree(pageio);
+		kfree(pageio);
 	}
 
 	_leave(" = 0");
diff --git a/fs/autofs/waitq.c b/fs/autofs/waitq.c
index 1fcaa156..633f628 100644
--- a/fs/autofs/waitq.c
+++ b/fs/autofs/waitq.c
@@ -150,10 +150,8 @@ int autofs_wait(struct autofs_sb_info *sbi, struct qstr *name)
 	if ( sbi->catatonic ) {
 		/* We might have slept, so check again for catatonic mode */
 		wq->status = -ENOENT;
-		if ( wq->name ) {
-			kfree(wq->name);
-			wq->name = NULL;
-		}
+		kfree(wq->name);
+		wq->name = NULL;
 	}
 
 	if ( wq->name ) {
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 0a3c05d..818b37b 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -22,10 +22,8 @@
 
 static void ino_lnkfree(struct autofs_info *ino)
 {
-	if (ino->u.symlink) {
-		kfree(ino->u.symlink);
-		ino->u.symlink = NULL;
-	}
+	kfree(ino->u.symlink);
+	ino->u.symlink = NULL;
 }
 
 struct autofs_info *autofs4_init_ino(struct autofs_info *ino,
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 3df8628..394ff36 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -243,10 +243,8 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
 	if ( sbi->catatonic ) {
 		/* We might have slept, so check again for catatonic mode */
 		wq->status = -ENOENT;
-		if ( wq->name ) {
-			kfree(wq->name);
-			wq->name = NULL;
-		}
+		kfree(wq->name);
+		wq->name = NULL;
 	}
 
 	if ( wq->name ) {
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index e8112ad..2d365cb 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -725,20 +725,16 @@ parse_options(char *options, befs_mount_options * opts)
 static void
 befs_put_super(struct super_block *sb)
 {
-	if (BEFS_SB(sb)->mount_opts.iocharset) {
-		kfree(BEFS_SB(sb)->mount_opts.iocharset);
-		BEFS_SB(sb)->mount_opts.iocharset = NULL;
-	}
+	kfree(BEFS_SB(sb)->mount_opts.iocharset);
+	BEFS_SB(sb)->mount_opts.iocharset = NULL;
 
 	if (BEFS_SB(sb)->nls) {
 		unload_nls(BEFS_SB(sb)->nls);
 		BEFS_SB(sb)->nls = NULL;
 	}
 
-	if (sb->s_fs_info) {
-		kfree(sb->s_fs_info);
-		sb->s_fs_info = NULL;
-	}
+	kfree(sb->s_fs_info);
+	sb->s_fs_info = NULL;
 	return;
 }
 
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 6fa6adc..f36f221 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1006,8 +1006,7 @@ out_free_dentry:
 	if (interpreter)
 		fput(interpreter);
 out_free_interp:
-	if (elf_interpreter)
-		kfree(elf_interpreter);
+	kfree(elf_interpreter);
 out_free_file:
 	sys_close(elf_exec_fileno);
 out_free_fh:
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index dda87c4..e0344f6 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -411,16 +411,11 @@ error:
 		allow_write_access(interpreter);
 		fput(interpreter);
 	}
-	if (interpreter_name)
-		kfree(interpreter_name);
-	if (exec_params.phdrs)
-		kfree(exec_params.phdrs);
-	if (exec_params.loadmap)
-		kfree(exec_params.loadmap);
-	if (interp_params.phdrs)
-		kfree(interp_params.phdrs);
-	if (interp_params.loadmap)
-		kfree(interp_params.loadmap);
+	kfree(interpreter_name);
+	kfree(exec_params.phdrs);
+	kfree(exec_params.loadmap);
+	kfree(interp_params.phdrs);
+	kfree(interp_params.loadmap);
 	return retval;
 
 	/* unrecoverable error - kill the process */
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index 98539e2..086ae8f 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -553,8 +553,7 @@ decode_negTokenInit(unsigned char *security_blob, int length,
 					   *(oid + 3)));
 					rc = compare_oid(oid, oidlen, NTLMSSP_OID,
 						 NTLMSSP_OID_LEN);
-					if(oid)
-						kfree(oid);
+					kfree(oid);
 					if (rc)
 						use_ntlmssp = TRUE;
 				}
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index d74367a..450ab75 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1265,8 +1265,7 @@ connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
 		the helper that resolves tcp names, mount to it, try to 
 		tcon to it unmount it if fail */
 
-	if(referrals)
-		kfree(referrals);
+	kfree(referrals);
 
 	return rc;
 }
@@ -1535,10 +1534,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 	
 	memset(&volume_info,0,sizeof(struct smb_vol));
 	if (cifs_parse_mount_options(mount_data, devname, &volume_info)) {
-		if(volume_info.UNC)
-			kfree(volume_info.UNC);
-		if(volume_info.password)
-			kfree(volume_info.password);
+		kfree(volume_info.UNC);
+		kfree(volume_info.password);
 		FreeXid(xid);
 		return -EINVAL;
 	}
@@ -1551,10 +1548,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 		cifserror("No username specified ");
         /* In userspace mount helper we can get user name from alternate
            locations such as env variables and files on disk */
-		if(volume_info.UNC)
-			kfree(volume_info.UNC);
-		if(volume_info.password)
-			kfree(volume_info.password);
+		kfree(volume_info.UNC);
+		kfree(volume_info.password);
 		FreeXid(xid);
 		return -EINVAL;
 	}
@@ -1573,10 +1568,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
        
 		if(rc <= 0) {
 			/* we failed translating address */
-			if(volume_info.UNC)
-				kfree(volume_info.UNC);
-			if(volume_info.password)
-				kfree(volume_info.password);
+			kfree(volume_info.UNC);
+			kfree(volume_info.password);
 			FreeXid(xid);
 			return -EINVAL;
 		}
@@ -1587,19 +1580,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 	} else if (volume_info.UNCip){
 		/* BB using ip addr as server name connect to the DFS root below */
 		cERROR(1,("Connecting to DFS root not implemented yet"));
-		if(volume_info.UNC)
-			kfree(volume_info.UNC);
-		if(volume_info.password)
-			kfree(volume_info.password);
+		kfree(volume_info.UNC);
+		kfree(volume_info.password);
 		FreeXid(xid);
 		return -EINVAL;
 	} else /* which servers DFS root would we conect to */ {
 		cERROR(1,
 		       ("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified  "));
-		if(volume_info.UNC)
-			kfree(volume_info.UNC);
-		if(volume_info.password)
-			kfree(volume_info.password);
+		kfree(volume_info.UNC);
+		kfree(volume_info.password);
 		FreeXid(xid);
 		return -EINVAL;
 	}
@@ -1612,10 +1601,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 		cifs_sb->local_nls = load_nls(volume_info.iocharset);
 		if(cifs_sb->local_nls == NULL) {
 			cERROR(1,("CIFS mount error: iocharset %s not found",volume_info.iocharset));
-			if(volume_info.UNC)
-				kfree(volume_info.UNC);
-			if(volume_info.password)
-				kfree(volume_info.password);
+			kfree(volume_info.UNC);
+			kfree(volume_info.password);
 			FreeXid(xid);
 			return -ELIBACC;
 		}
@@ -1630,10 +1617,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 			&sin_server6.sin6_addr,
 			volume_info.username, &srvTcp);
 	else {
-		if(volume_info.UNC)
-			kfree(volume_info.UNC);
-		if(volume_info.password)
-			kfree(volume_info.password);
+		kfree(volume_info.UNC);
+		kfree(volume_info.password);
 		FreeXid(xid);
 		return -EINVAL;
 	}
@@ -1654,10 +1639,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 			       ("Error connecting to IPv4 socket. Aborting operation"));
 			if(csocket != NULL)
 				sock_release(csocket);
-			if(volume_info.UNC)
-				kfree(volume_info.UNC);
-			if(volume_info.password)
-				kfree(volume_info.password);
+			kfree(volume_info.UNC);
+			kfree(volume_info.password);
 			FreeXid(xid);
 			return rc;
 		}
@@ -1666,10 +1649,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 		if (srvTcp == NULL) {
 			rc = -ENOMEM;
 			sock_release(csocket);
-			if(volume_info.UNC)
-				kfree(volume_info.UNC);
-			if(volume_info.password)
-				kfree(volume_info.password);
+			kfree(volume_info.UNC);
+			kfree(volume_info.password);
 			FreeXid(xid);
 			return rc;
 		} else {
@@ -1692,10 +1673,8 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 			if(rc < 0) {
 				rc = -ENOMEM;
 				sock_release(csocket);
-				if(volume_info.UNC)
-					kfree(volume_info.UNC);
-				if(volume_info.password)
-					kfree(volume_info.password);
+				kfree(volume_info.UNC);
+				kfree(volume_info.password);
 				FreeXid(xid);
 				return rc;
 			}
@@ -1710,8 +1689,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 	if (existingCifsSes) {
 		pSesInfo = existingCifsSes;
 		cFYI(1, ("Existing smb sess found "));
-		if(volume_info.password)
-			kfree(volume_info.password);
+		kfree(volume_info.password);
 		/* volume_info.UNC freed at end of function */
 	} else if (!rc) {
 		cFYI(1, ("Existing smb sess not found "));
@@ -1741,8 +1719,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 			if(!rc)
 				atomic_inc(&srvTcp->socketUseCount);
 		} else
-			if(volume_info.password)
-				kfree(volume_info.password);
+			kfree(volume_info.password);
 	}
     
 	/* search for existing tcon to this server share */
@@ -1821,8 +1798,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 							"", cifs_sb->local_nls,
 							cifs_sb->mnt_cifs_flags & 
 							  CIFS_MOUNT_MAP_SPECIAL_CHR);
-					if(volume_info.UNC)
-						kfree(volume_info.UNC);
+					kfree(volume_info.UNC);
 					FreeXid(xid);
 					return -ENODEV;
 				} else {
@@ -1925,8 +1901,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 	(in which case it is not needed anymore) but when new sesion is created
 	the password ptr is put in the new session structure (in which case the
 	password will be freed at unmount time) */
-	if(volume_info.UNC)
-		kfree(volume_info.UNC);
+	kfree(volume_info.UNC);
 	FreeXid(xid);
 	return rc;
 }
@@ -3283,8 +3258,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
 			if ((bcc_ptr + (2 * length)) -
 			     pByteArea(smb_buffer_response) <=
 			    BCC(smb_buffer_response)) {
-				if(tcon->nativeFileSystem)
-					kfree(tcon->nativeFileSystem);
+				kfree(tcon->nativeFileSystem);
 				tcon->nativeFileSystem =
 				    kzalloc(length + 2, GFP_KERNEL);
 				cifs_strfromUCS_le(tcon->nativeFileSystem,
@@ -3301,8 +3275,7 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
 			if ((bcc_ptr + length) -
 			    pByteArea(smb_buffer_response) <=
 			    BCC(smb_buffer_response)) {
-				if(tcon->nativeFileSystem)
-					kfree(tcon->nativeFileSystem);
+				kfree(tcon->nativeFileSystem);
 				tcon->nativeFileSystem =
 				    kzalloc(length + 1, GFP_KERNEL);
 				strncpy(tcon->nativeFileSystem, bcc_ptr,
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index b43e071..0f99aae 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -84,10 +84,8 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode,
 	cifsInode->time = 0;	/* will force revalidate to go get info when needed */
 
 cifs_hl_exit:
-	if (fromName)
-		kfree(fromName);
-	if (toName)
-		kfree(toName);
+	kfree(fromName);
+	kfree(toName);
 	FreeXid(xid);
 	return rc;
 }
@@ -206,8 +204,7 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname)
 		}
 	}
 
-	if (full_path)
-		kfree(full_path);
+	kfree(full_path);
 	FreeXid(xid);
 	return rc;
 }
@@ -253,8 +250,7 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
 		len = buflen;
 	tmpbuffer = kmalloc(len,GFP_KERNEL);   
 	if(tmpbuffer == NULL) {
-		if (full_path)
-			kfree(full_path);
+		kfree(full_path);
 		FreeXid(xid);
 		return -ENOMEM;
 	}
@@ -303,8 +299,7 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
 							strncpy(tmpbuffer, referrals, len-1);                            
 						}
 					}
-					if(referrals)
-						kfree(referrals);
+					kfree(referrals);
 					kfree(tmp_path);
 }
 				/* BB add code like else decode referrals then memcpy to
@@ -323,12 +318,8 @@ cifs_readlink(struct dentry *direntry, char __user *pBuffer, int buflen)
 		      rc));
 	}
 
-	if (tmpbuffer) {
-		kfree(tmpbuffer);
-	}
-	if (full_path) {
-		kfree(full_path);
-	}
+	kfree(tmpbuffer);
+	kfree(full_path);
 	FreeXid(xid);
 	return rc;
 }
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index eba1de9..34a0669 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -98,14 +98,10 @@ sesInfoFree(struct cifsSesInfo *buf_to_free)
 	atomic_dec(&sesInfoAllocCount);
 	list_del(&buf_to_free->cifsSessionList);
 	write_unlock(&GlobalSMBSeslock);
-	if (buf_to_free->serverOS)
-		kfree(buf_to_free->serverOS);
-	if (buf_to_free->serverDomain)
-		kfree(buf_to_free->serverDomain);
-	if (buf_to_free->serverNOS)
-		kfree(buf_to_free->serverNOS);
-	if (buf_to_free->password)
-		kfree(buf_to_free->password);
+	kfree(buf_to_free->serverOS);
+	kfree(buf_to_free->serverDomain);
+	kfree(buf_to_free->serverNOS);
+	kfree(buf_to_free->password);
 	kfree(buf_to_free);
 }
 
@@ -144,8 +140,7 @@ tconInfoFree(struct cifsTconInfo *buf_to_free)
 	atomic_dec(&tconInfoAllocCount);
 	list_del(&buf_to_free->cifsConnectionList);
 	write_unlock(&GlobalSMBSeslock);
-	if (buf_to_free->nativeFileSystem)
-		kfree(buf_to_free->nativeFileSystem);
+	kfree(buf_to_free->nativeFileSystem);
 	kfree(buf_to_free);
 }
 
diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c
index c1e02ef..f375f87 100644
--- a/fs/cifs/xattr.c
+++ b/fs/cifs/xattr.c
@@ -87,8 +87,7 @@ int cifs_removexattr(struct dentry * direntry, const char * ea_name)
 			cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
 	}
 remove_ea_exit:
-	if (full_path)
-		kfree(full_path);
+	kfree(full_path);
 	FreeXid(xid);
 #endif
 	return rc;
@@ -132,8 +131,7 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name,
 		returns as xattrs */
 	if(value_size > MAX_EA_VALUE_SIZE) {
 		cFYI(1,("size of EA value too large"));
-		if(full_path)
-			kfree(full_path);
+		kfree(full_path);
 		FreeXid(xid);
 		return -EOPNOTSUPP;
 	}
@@ -195,8 +193,7 @@ int cifs_setxattr(struct dentry * direntry, const char * ea_name,
 	}
 
 set_ea_exit:
-	if (full_path)
-		kfree(full_path);
+	kfree(full_path);
 	FreeXid(xid);
 #endif
 	return rc;
@@ -298,8 +295,7 @@ ssize_t cifs_getxattr(struct dentry * direntry, const char * ea_name,
 		rc = -EOPNOTSUPP; 
 
 get_ea_exit:
-	if (full_path)
-		kfree(full_path);
+	kfree(full_path);
 	FreeXid(xid);
 #endif
 	return rc;
@@ -345,8 +341,7 @@ ssize_t cifs_listxattr(struct dentry * direntry, char * data, size_t buf_size)
 				cifs_sb->mnt_cifs_flags & 
 					CIFS_MOUNT_MAP_SPECIAL_CHR);
 
-	if (full_path)
-		kfree(full_path);
+	kfree(full_path);
 	FreeXid(xid);
 #endif
 	return rc;
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 43dbcb0..4909754 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -2235,7 +2235,8 @@ static int fd_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
 	if (err)
 		err = -EFAULT;
 
-out:	if (karg) kfree(karg);
+out:
+	kfree(karg);
 	return err;
 }
 
diff --git a/fs/devfs/base.c b/fs/devfs/base.c
index 8b679b6..1274422 100644
--- a/fs/devfs/base.c
+++ b/fs/devfs/base.c
@@ -2738,10 +2738,8 @@ static int devfsd_close(struct inode *inode, struct file *file)
 	entry = fs_info->devfsd_first_event;
 	fs_info->devfsd_first_event = NULL;
 	fs_info->devfsd_last_event = NULL;
-	if (fs_info->devfsd_info) {
-		kfree(fs_info->devfsd_info);
-		fs_info->devfsd_info = NULL;
-	}
+	kfree(fs_info->devfsd_info);
+	fs_info->devfsd_info = NULL;
 	spin_unlock(&fs_info->devfsd_buffer_lock);
 	fs_info->devfsd_pgrp = 0;
 	fs_info->devfsd_task = NULL;
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index 213148c..6af2f41 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -194,8 +194,7 @@ ext2_get_acl(struct inode *inode, int type)
 		acl = NULL;
 	else
 		acl = ERR_PTR(retval);
-	if (value)
-		kfree(value);
+	kfree(value);
 
 	if (!IS_ERR(acl)) {
 		switch(type) {
@@ -262,8 +261,7 @@ ext2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 
 	error = ext2_xattr_set(inode, name_index, "", value, size, 0);
 
-	if (value)
-		kfree(value);
+	kfree(value);
 	if (!error) {
 		switch(type) {
 			case ACL_TYPE_ACCESS:
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index dd71131..a33fb1d 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -294,8 +294,7 @@ static void hostfs_delete_inode(struct inode *inode)
 
 static void hostfs_destroy_inode(struct inode *inode)
 {
-	if(HOSTFS_I(inode)->host_filename)
-		kfree(HOSTFS_I(inode)->host_filename);
+	kfree(HOSTFS_I(inode)->host_filename);
 
 	/*XXX: This should not happen, probably. The check is here for
 	 * additional safety.*/
diff --git a/fs/hpfs/dnode.c b/fs/hpfs/dnode.c
index 1d21307..229ff2f 100644
--- a/fs/hpfs/dnode.c
+++ b/fs/hpfs/dnode.c
@@ -244,12 +244,12 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno,
 	go_up:
 	if (namelen >= 256) {
 		hpfs_error(i->i_sb, "hpfs_add_to_dnode: namelen == %d", namelen);
-		if (nd) kfree(nd);
+		kfree(nd);
 		kfree(nname);
 		return 1;
 	}
 	if (!(d = hpfs_map_dnode(i->i_sb, dno, &qbh))) {
-		if (nd) kfree(nd);
+		kfree(nd);
 		kfree(nname);
 		return 1;
 	}
@@ -257,7 +257,7 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno,
 	if (hpfs_sb(i->i_sb)->sb_chk)
 		if (hpfs_stop_cycles(i->i_sb, dno, &c1, &c2, "hpfs_add_to_dnode")) {
 			hpfs_brelse4(&qbh);
-			if (nd) kfree(nd);
+			kfree(nd);
 			kfree(nname);
 			return 1;
 		}
@@ -270,7 +270,7 @@ static int hpfs_add_to_dnode(struct inode *i, dnode_secno dno,
 		for_all_poss(i, hpfs_pos_subst, 5, t + 1);
 		hpfs_mark_4buffers_dirty(&qbh);
 		hpfs_brelse4(&qbh);
-		if (nd) kfree(nd);
+		kfree(nd);
 		kfree(nname);
 		return 0;
 	}
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 8eefa63..63e88d7 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -75,7 +75,7 @@ void hpfs_error(struct super_block *s, char *m,...)
 		} else if (s->s_flags & MS_RDONLY) printk("; going on - but anything won't be destroyed because it's read-only\n");
 		else printk("; corrupted filesystem mounted read/write - your computer will explode within 20 seconds ... but you wanted it so!\n");
 	} else printk("\n");
-	if (buf) kfree(buf);
+	kfree(buf);
 	hpfs_sb(s)->sb_was_error = 1;
 }
 
@@ -102,8 +102,8 @@ int hpfs_stop_cycles(struct super_block *s, int key, int *c1, int *c2,
 static void hpfs_put_super(struct super_block *s)
 {
 	struct hpfs_sb_info *sbi = hpfs_sb(s);
-	if (sbi->sb_cp_table) kfree(sbi->sb_cp_table);
-	if (sbi->sb_bmp_dir) kfree(sbi->sb_bmp_dir);
+	kfree(sbi->sb_cp_table);
+	kfree(sbi->sb_bmp_dir);
 	unmark_dirty(s);
 	s->s_fs_info = NULL;
 	kfree(sbi);
@@ -654,8 +654,8 @@ bail3:	brelse(bh1);
 bail2:	brelse(bh0);
 bail1:
 bail0:
-	if (sbi->sb_bmp_dir) kfree(sbi->sb_bmp_dir);
-	if (sbi->sb_cp_table) kfree(sbi->sb_cp_table);
+	kfree(sbi->sb_bmp_dir);
+	kfree(sbi->sb_cp_table);
 	s->s_fs_info = NULL;
 	kfree(sbi);
 	return -EINVAL;
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 1652de1..298f08b 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -855,8 +855,7 @@ root_found:
 	if (opt.check == 'r') table++;
 	s->s_root->d_op = &isofs_dentry_ops[table];
 
-	if (opt.iocharset)
-		kfree(opt.iocharset);
+	kfree(opt.iocharset);
 
 	return 0;
 
@@ -895,8 +894,7 @@ out_unknown_format:
 out_freebh:
 	brelse(bh);
 out_freesbi:
-	if (opt.iocharset)
-		kfree(opt.iocharset);
+	kfree(opt.iocharset);
 	kfree(sbi);
 	s->s_fs_info = NULL;
 	return -EINVAL;
@@ -1164,8 +1162,7 @@ out_nomem:
 
 out_noread:
 	printk(KERN_INFO "ISOFS: unable to read i-node block %lu\n", block);
-	if (tmpde)
-		kfree(tmpde);
+	kfree(tmpde);
 	return -EIO;
 
 out_toomany:
@@ -1334,8 +1331,7 @@ static void isofs_read_inode(struct inode *inode)
 		init_special_inode(inode, inode->i_mode, inode->i_rdev);
 
 out:
-	if (tmpde)
-		kfree(tmpde);
+	kfree(tmpde);
 	if (bh)
 		brelse(bh);
 	return;
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 2a3e310..002ad2b 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -261,10 +261,8 @@ void journal_commit_transaction(journal_t *journal)
 			struct buffer_head *bh = jh2bh(jh);
 
 			jbd_lock_bh_state(bh);
-			if (jh->b_committed_data) {
-				kfree(jh->b_committed_data);
-				jh->b_committed_data = NULL;
-			}
+			kfree(jh->b_committed_data);
+			jh->b_committed_data = NULL;
 			jbd_unlock_bh_state(bh);
 		}
 		journal_refile_buffer(journal, jh);
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 13cb05b..429f4b2 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -227,8 +227,7 @@ repeat_locked:
 	spin_unlock(&transaction->t_handle_lock);
 	spin_unlock(&journal->j_state_lock);
 out:
-	if (new_transaction)
-		kfree(new_transaction);
+	kfree(new_transaction);
 	return ret;
 }
 
@@ -725,8 +724,7 @@ done:
 	journal_cancel_revoke(handle, jh);
 
 out:
-	if (frozen_buffer)
-		kfree(frozen_buffer);
+	kfree(frozen_buffer);
 
 	JBUFFER_TRACE(jh, "exit");
 	return error;
@@ -905,8 +903,7 @@ repeat:
 	jbd_unlock_bh_state(bh);
 out:
 	journal_put_journal_head(jh);
-	if (committed_data)
-		kfree(committed_data);
+	kfree(committed_data);
 	return err;
 }
 
diff --git a/fs/jffs/intrep.c b/fs/jffs/intrep.c
index 27f199e..b2e9542 100644
--- a/fs/jffs/intrep.c
+++ b/fs/jffs/intrep.c
@@ -462,7 +462,7 @@ jffs_checksum_flash(struct mtd_info *mtd, loff_t start, int size, __u32 *result)
 	}
 
 	/* Free read buffer */
-	kfree (read_buf);
+	kfree(read_buf);
 
 	/* Return result */
 	D3(printk("checksum result: 0x%08x\n", sum));
@@ -1011,12 +1011,12 @@ jffs_scan_flash(struct jffs_control *c)
 						       offset , fmc->sector_size);
 
 						flash_safe_release(fmc->mtd);
-						kfree (read_buf);
+						kfree(read_buf);
 						return -1; /* bad, bad, bad! */
 
 					}
 					flash_safe_release(fmc->mtd);
-					kfree (read_buf);
+					kfree(read_buf);
 
 					return -EAGAIN; /* erased offending sector. Try mount one more time please. */
 				}
@@ -1112,7 +1112,7 @@ jffs_scan_flash(struct jffs_control *c)
 		if (!node) {
 			if (!(node = jffs_alloc_node())) {
 				/* Free read buffer */
-				kfree (read_buf);
+				kfree(read_buf);
 
 				/* Release the flash device */
 				flash_safe_release(fmc->mtd);
@@ -1269,7 +1269,7 @@ jffs_scan_flash(struct jffs_control *c)
 				DJM(no_jffs_node--);
 
 				/* Free read buffer */
-				kfree (read_buf);
+				kfree(read_buf);
 
 				/* Release the flash device */
 				flash_safe_release(fmc->mtd);
@@ -1296,7 +1296,7 @@ jffs_scan_flash(struct jffs_control *c)
 					flash_safe_release(fmc->flash_part);
 
 					/* Free read buffer */
-					kfree (read_buf);
+					kfree(read_buf);
 
 					return -ENOMEM;
 				}
@@ -1324,7 +1324,7 @@ jffs_scan_flash(struct jffs_control *c)
 	jffs_build_end(fmc);
 
 	/* Free read buffer */
-	kfree (read_buf);
+	kfree(read_buf);
 
 	if(!num_free_space){
 	        printk(KERN_WARNING "jffs_scan_flash(): Did not find even a single "
@@ -1747,9 +1747,7 @@ jffs_find_child(struct jffs_file *dir, const char *name, int len)
 		}
 		printk("jffs_find_child(): Didn't find the file \"%s\".\n",
 		       (copy ? copy : ""));
-		if (copy) {
-			kfree(copy);
-		}
+		kfree(copy);
 	});
 
 	return f;
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 5b2a835..1a96903 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -490,7 +490,7 @@ int jffs2_do_crccheck_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *i
 		up(&f->sem);
 		jffs2_do_clear_inode(c, f);
 	}
-	kfree (f);
+	kfree(f);
 	return ret;
 }
 
@@ -742,10 +742,8 @@ void jffs2_do_clear_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f)
 
 	/* For symlink inodes we us f->dents to store the target path name */
 	if (S_ISLNK(OFNI_EDONI_2SFFJ(f)->i_mode)) {
-		if (f->dents) {
-			kfree(f->dents);
-			f->dents = NULL;
-		}
+		kfree(f->dents);
+		f->dents = NULL;
 	} else {
 		fds = f->dents;
 
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 316133c..7bc7f2d 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -327,8 +327,7 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
 		c->wbuf_ofs = ofs + towrite;
 		memmove(c->wbuf, rewrite_buf + towrite, c->wbuf_len);
 		/* Don't muck about with c->wbuf_inodes. False positives are harmless. */
-		if (buf)
-			kfree(buf);
+		kfree(buf);
 	} else {
 		/* OK, now we're left with the dregs in whichever buffer we're using */
 		if (buf) {
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 87332f3..c5a3364 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -112,8 +112,7 @@ static struct nlm_lockowner *nlm_find_lockowner(struct nlm_host *host, fl_owner_
 		}
 	}
 	spin_unlock(&host->h_lock);
-	if (new != NULL)
-		kfree(new);
+	kfree(new);
 	return res;
 }
 
diff --git a/fs/mbcache.c b/fs/mbcache.c
index 298997f..0f1e453 100644
--- a/fs/mbcache.c
+++ b/fs/mbcache.c
@@ -301,8 +301,7 @@ fail:
 	if (cache) {
 		while (--m >= 0)
 			kfree(cache->c_indexes_hash[m]);
-		if (cache->c_block_hash)
-			kfree(cache->c_block_hash);
+		kfree(cache->c_block_hash);
 		kfree(cache);
 	}
 	return NULL;
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 3976c17..618a327 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -149,8 +149,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
 		}
 	}
 	spin_unlock(&clp->cl_lock);
-	if (delegation != NULL)
-		kfree(delegation);
+	kfree(delegation);
 	return status;
 }
 
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 24d2fbf..6391d89 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1688,8 +1688,7 @@ static void nfs_kill_super(struct super_block *s)
 
 	rpciod_down();		/* release rpciod */
 
-	if (server->hostname != NULL)
-		kfree(server->hostname);
+	kfree(server->hostname);
 	kfree(server);
 }
 
@@ -1908,8 +1907,7 @@ nfs_copy_user_string(char *dst, struct nfs_string *src, int maxlen)
 			return ERR_PTR(-ENOMEM);
 	}
 	if (copy_from_user(dst, src->data, maxlen)) {
-		if (p != NULL)
-			kfree(p);
+		kfree(p);
 		return ERR_PTR(-EFAULT);
 	}
 	dst[maxlen] = '\0';
@@ -2000,10 +1998,8 @@ static struct super_block *nfs4_get_sb(struct file_system_type *fs_type,
 out_err:
 	s = (struct super_block *)p;
 out_free:
-	if (server->mnt_path)
-		kfree(server->mnt_path);
-	if (server->hostname)
-		kfree(server->hostname);
+	kfree(server->mnt_path);
+	kfree(server->hostname);
 	kfree(server);
 	return s;
 }
@@ -2023,8 +2019,7 @@ static void nfs4_kill_super(struct super_block *sb)
 
 	destroy_nfsv4_state(server);
 
-	if (server->hostname != NULL)
-		kfree(server->hostname);
+	kfree(server->hostname);
 	kfree(server);
 }
 
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 52a26ba..0675f32 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -69,10 +69,8 @@ init_nfsv4_state(struct nfs_server *server)
 void
 destroy_nfsv4_state(struct nfs_server *server)
 {
-	if (server->mnt_path) {
-		kfree(server->mnt_path);
-		server->mnt_path = NULL;
-	}
+	kfree(server->mnt_path);
+	server->mnt_path = NULL;
 	if (server->nfs4_state) {
 		nfs4_put_client(server->nfs4_state);
 		server->nfs4_state = NULL;
@@ -311,8 +309,7 @@ struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server, struct
 		new = NULL;
 	}
 	spin_unlock(&clp->cl_lock);
-	if (new)
-		kfree(new);
+	kfree(new);
 	if (sp != NULL)
 		return sp;
 	put_rpccred(cred);
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index f732541..d639d17 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -52,8 +52,7 @@ nfs_put_unlinkdata(struct nfs_unlinkdata *data)
 {
 	if (--data->count == 0) {
 		nfs_detach_unlinkdata(data);
-		if (data->name.name != NULL)
-			kfree(data->name.name);
+		kfree(data->name.name);
 		kfree(data);
 	}
 }
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 057aff7..417ec02 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -190,8 +190,7 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
  out:
 	if (dom)
 		auth_domain_put(dom);
-	if (buf)
-		kfree(buf);
+	kfree(buf);
 	return err;
 }
 
@@ -428,8 +427,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
 		path_release(&nd);
 	if (dom)
 		auth_domain_put(dom);
-	if (buf)
-		kfree(buf);
+	kfree(buf);
 	return err;
 }
 
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 4c41463..dcd6731 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -151,8 +151,7 @@ static u32 *read_buf(struct nfsd4_compoundargs *argp, int nbytes)
 	if (nbytes <= sizeof(argp->tmp))
 		p = argp->tmp;
 	else {
-		if (argp->tmpp)
-			kfree(argp->tmpp);
+		kfree(argp->tmpp);
 		p = argp->tmpp = kmalloc(nbytes, GFP_KERNEL);
 		if (!p)
 			return NULL;
@@ -2476,10 +2475,8 @@ void nfsd4_release_compoundargs(struct nfsd4_compoundargs *args)
 		kfree(args->ops);
 		args->ops = args->iops;
 	}
-	if (args->tmpp) {
-		kfree(args->tmpp);
-		args->tmpp = NULL;
-	}
+	kfree(args->tmpp);
+	args->tmpp = NULL;
 	while (args->to_free) {
 		struct tmpbuf *tb = args->to_free;
 		args->to_free = tb->next;
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 119e4d4..d852ebb 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -93,8 +93,7 @@ nfsd_cache_shutdown(void)
 
 	cache_disabled = 1;
 
-	if (hash_list)
-		kfree (hash_list);
+	kfree (hash_list);
 	hash_list = NULL;
 }
 
diff --git a/fs/openpromfs/inode.c b/fs/openpromfs/inode.c
index 1be11ce..aeb0106 100644
--- a/fs/openpromfs/inode.c
+++ b/fs/openpromfs/inode.c
@@ -1088,8 +1088,7 @@ static void __exit exit_openprom_fs(void)
 	unregister_filesystem(&openprom_fs_type);
 	free_pages ((unsigned long)nodes, alloced);
 	for (i = 0; i < aliases_nodes; i++)
-		if (alias_names [i])
-			kfree (alias_names [i]);
+		kfree (alias_names [i]);
 	nodes = NULL;
 }
 
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index 0e54922..6636698 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -39,8 +39,7 @@ static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
 {\
 	if (UDF_SB(X))\
 	{\
-		if (UDF_SB_PARTMAPS(X))\
-			kfree(UDF_SB_PARTMAPS(X));\
+		kfree(UDF_SB_PARTMAPS(X));\
 		UDF_SB_PARTMAPS(X) = NULL;\
 	}\
 }
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index f036d69..54828eb 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -472,13 +472,14 @@ static int ufs_read_cylinder_structures (struct super_block *sb) {
 	return 1;
 
 failed:
-	if (base) kfree (base);
+	kfree (base);
 	if (sbi->s_ucg) {
 		for (i = 0; i < uspi->s_ncg; i++)
-			if (sbi->s_ucg[i]) brelse (sbi->s_ucg[i]);
+			if (sbi->s_ucg[i])
+				brelse (sbi->s_ucg[i]);
 		kfree (sbi->s_ucg);
 		for (i = 0; i < UFS_MAX_GROUP_LOADED; i++)
-			if (sbi->s_ucpi[i]) kfree (sbi->s_ucpi[i]);
+			kfree (sbi->s_ucpi[i]);
 	}
 	UFSD(("EXIT (FAILED)\n"))
 	return 0;
@@ -981,9 +982,10 @@ magic_found:
 dalloc_failed:
 	iput(inode);
 failed:
-	if (ubh) ubh_brelse_uspi (uspi);
-	if (uspi) kfree (uspi);
-	if (sbi) kfree(sbi);
+	if (ubh)
+		ubh_brelse_uspi (uspi);
+	kfree (uspi);
+	kfree(sbi);
 	sb->s_fs_info = NULL;
 	UFSD(("EXIT (FAILED)\n"))
 	return -EINVAL;
diff --git a/fs/xattr.c b/fs/xattr.c
index f6e00c0..a9db225 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -74,8 +74,7 @@ setxattr(struct dentry *d, char __user *name, void __user *value,
 	}
 out:
 	up(&d->d_inode->i_sem);
-	if (kvalue)
-		kfree(kvalue);
+	kfree(kvalue);
 	return error;
 }
 
@@ -173,8 +172,7 @@ getxattr(struct dentry *d, char __user *name, void __user *value, size_t size)
 		error = -E2BIG;
 	}
 out:
-	if (kvalue)
-		kfree(kvalue);
+	kfree(kvalue);
 	return error;
 }
 
@@ -259,8 +257,7 @@ listxattr(struct dentry *d, char __user *list, size_t size)
 		error = -E2BIG;
 	}
 out:
-	if (klist)
-		kfree(klist);
+	kfree(klist);
 	return error;
 }