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| author | Tsutomu Itoh <t-itoh@jp.fujitsu.com> | 2011-10-06 08:37:08 +0400 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2011-10-20 20:10:47 +0400 |
| commit | cfbffc39ac89dbd5197cbeec2599a1128eb928f8 (patch) | |
| tree | d544e0c12f565b1f8ff359eca3847fc0e10006c9 /fs/btrfs/acl.c | |
| parent | 10b2f34d6e7fbe07f498cb2006272e9a561f5e60 (diff) | |
| download | linux-cfbffc39ac89dbd5197cbeec2599a1128eb928f8.tar.xz | |
Btrfs: fix return value of btrfs_get_acl()
In btrfs_get_acl(), when the second __btrfs_getxattr() call fails,
acl is not correctly set.
Therefore, a wrong value might return to the caller.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Diffstat (limited to 'fs/btrfs/acl.c')
| -rw-r--r-- | fs/btrfs/acl.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index eb159aaa5a11..89b156d85d63 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -59,22 +59,19 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type) if (!value) return ERR_PTR(-ENOMEM); size = __btrfs_getxattr(inode, name, value, size); - if (size > 0) { - acl = posix_acl_from_xattr(value, size); - if (IS_ERR(acl)) { - kfree(value); - return acl; - } - set_cached_acl(inode, type, acl); - } - kfree(value); + } + if (size > 0) { + acl = posix_acl_from_xattr(value, size); } else if (size == -ENOENT || size == -ENODATA || size == 0) { /* FIXME, who returns -ENOENT? I think nobody */ acl = NULL; - set_cached_acl(inode, type, acl); } else { acl = ERR_PTR(-EIO); } + kfree(value); + + if (!IS_ERR(acl)) + set_cached_acl(inode, type, acl); return acl; } |