提交 3140c9a3 编写于 作者: D Dan Carpenter 提交者: Chris Mason

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: NDan Carpenter <error27@gmail.com>
Signed-off-by: NChris Mason <chris.mason@oracle.com>
上级 d327099a
......@@ -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);
......
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