diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 0144790..50c5a87 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1485,7 +1485,7 @@
 	struct file *filp;
 
 	filp = filp_open(path_name, O_RDWR, 0);
-	if (!filp)
+	if (IS_ERR(filp))
 		return;
 	file_update_time(filp);
 	filp_close(filp, NULL);