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authorDan Carpenter <error27@gmail.com>2010-05-29 09:44:10 +0000
committerChris Mason <chris.mason@oracle.com>2010-06-11 15:57:36 -0400
commit3140c9a34b44cd4013baae8704fdb34a93a44475 (patch)
tree824a5ecb5d6d1c50769d96cd48b8394c009334d5 /fs/btrfs
parentd327099a23e3d0c8ec09137e9b4b115449d4eb29 (diff)
Btrfs: btrfs_read_fs_root_no_name() returns ERR_PTRs
btrfs_read_fs_root_no_name() returns ERR_PTRs on error so I added a check for that. It's not clear to me if it can also return NULL pointers or not so I left the original NULL pointer check as is. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/disk-io.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 73895baf6e0..34f7c375567 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1985,6 +1985,10 @@ struct btrfs_root *open_ctree(struct super_block *sb,
fs_info->fs_root = btrfs_read_fs_root_no_name(fs_info, &location);
if (!fs_info->fs_root)
goto fail_trans_kthread;
+ if (IS_ERR(fs_info->fs_root)) {
+ err = PTR_ERR(fs_info->fs_root);
+ goto fail_trans_kthread;
+ }
if (!(sb->s_flags & MS_RDONLY)) {
down_read(&fs_info->cleanup_work_sem);