diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 96d2090..6dca345 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5458,8 +5458,7 @@
 				    extent_map_end(em) - 1, NULL, GFP_NOFS);
 		goto insert;
 	} else {
-		printk(KERN_ERR "btrfs unknown found_type %d\n", found_type);
-		WARN_ON(1);
+		WARN(1, KERN_ERR "btrfs unknown found_type %d\n", found_type);
 	}
 not_found:
 	em->start = start;