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| author | Andrew Morton <akpm@osdl.org> | 2006-06-23 02:05:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 07:43:05 -0700 |
| commit | e6022603b9aa7d61d20b392e69edcdbbc1789969 (patch) | |
| tree | f94b059e312ea7b2f3c4d0b01939e868ed525fb0 /fs/ext3/super.c | |
| parent | 304c4c841a31c780a45d65e389b07706babf5d36 (diff) | |
| download | lwn-e6022603b9aa7d61d20b392e69edcdbbc1789969.tar.gz lwn-e6022603b9aa7d61d20b392e69edcdbbc1789969.zip | |
[PATCH] ext3_clear_inode(): avoid kfree(NULL)
Steven Rostedt <rostedt@goodmis.org> points out that `rsv' here is usually
NULL, so we should avoid calling kfree().
Also, fix up some nearby whitespace damage.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ext3/super.c')
| -rw-r--r-- | fs/ext3/super.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/fs/ext3/super.c b/fs/ext3/super.c index e08b6439617c..1a198b3985c9 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -499,20 +499,21 @@ static void ext3_clear_inode(struct inode *inode) { struct ext3_block_alloc_info *rsv = EXT3_I(inode)->i_block_alloc_info; #ifdef CONFIG_EXT3_FS_POSIX_ACL - if (EXT3_I(inode)->i_acl && - EXT3_I(inode)->i_acl != EXT3_ACL_NOT_CACHED) { - posix_acl_release(EXT3_I(inode)->i_acl); - EXT3_I(inode)->i_acl = EXT3_ACL_NOT_CACHED; - } - if (EXT3_I(inode)->i_default_acl && - EXT3_I(inode)->i_default_acl != EXT3_ACL_NOT_CACHED) { - posix_acl_release(EXT3_I(inode)->i_default_acl); - EXT3_I(inode)->i_default_acl = EXT3_ACL_NOT_CACHED; - } + if (EXT3_I(inode)->i_acl && + EXT3_I(inode)->i_acl != EXT3_ACL_NOT_CACHED) { + posix_acl_release(EXT3_I(inode)->i_acl); + EXT3_I(inode)->i_acl = EXT3_ACL_NOT_CACHED; + } + if (EXT3_I(inode)->i_default_acl && + EXT3_I(inode)->i_default_acl != EXT3_ACL_NOT_CACHED) { + posix_acl_release(EXT3_I(inode)->i_default_acl); + EXT3_I(inode)->i_default_acl = EXT3_ACL_NOT_CACHED; + } #endif ext3_discard_reservation(inode); EXT3_I(inode)->i_block_alloc_info = NULL; - kfree(rsv); + if (unlikely(rsv)) + kfree(rsv); } static inline void ext3_show_quota_options(struct seq_file *seq, struct super_block *sb) |