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| author | OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> | 2008-11-06 12:53:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-06 15:41:21 -0800 |
| commit | 068f5ae05c51d2cee6b31cb3da06775dd83bd348 (patch) | |
| tree | a5e0d4ddd6f4edcc23ea58d9b86d8edd1ec6e2f8 | |
| parent | a993b542bb4cd3e5a64863b7ef892bbebec2239b (diff) | |
| download | linux-068f5ae05c51d2cee6b31cb3da06775dd83bd348.tar.bz2 | |
vfat: Fix vfat_find() error path in vfat_lookup()
Current vfat_lookup() creates negetive dentry blindly if vfat_find()
returned a error. It's wrong. If the error isn't -ENOENT, just return
error.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/fat/namei_vfat.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c index 1536bc3ca0f0..419deabfb9be 100644 --- a/fs/fat/namei_vfat.c +++ b/fs/fat/namei_vfat.c @@ -683,7 +683,7 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry, { struct super_block *sb = dir->i_sb; struct fat_slot_info sinfo; - struct inode *inode = NULL; + struct inode *inode; struct dentry *alias; int err, table; @@ -693,14 +693,18 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry, err = vfat_find(dir, &dentry->d_name, &sinfo); if (err) { - table++; + if (err == -ENOENT) { + table++; + inode = NULL; + goto out; + } goto error; } inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos); brelse(sinfo.bh); if (IS_ERR(inode)) { - unlock_super(sb); - return ERR_CAST(inode); + err = PTR_ERR(inode); + goto error; } alias = d_find_alias(inode); if (alias) { @@ -713,7 +717,7 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry, } } -error: +out: unlock_super(sb); dentry->d_op = &vfat_dentry_ops[table]; dentry->d_time = dentry->d_parent->d_inode->i_version; @@ -723,6 +727,10 @@ error: dentry->d_time = dentry->d_parent->d_inode->i_version; } return dentry; + +error: + unlock_super(sb); + return ERR_PTR(err); } static int vfat_create(struct inode *dir, struct dentry *dentry, int mode, |