diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9798e21..83e2349 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3124,7 +3124,7 @@ int open_ctree(struct super_block *sb,
 		goto fail_block_groups;
 	goto retry_root_backup;
 }
-ALLOW_ERROR_INJECTION(open_ctree);
+ALLOW_ERROR_INJECTION(open_ctree, ERRNO);
 
 static void btrfs_end_buffer_write_sync(struct buffer_head *bh, int uptodate)
 {