diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 8c37cb6..7dc69b3 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4249,10 +4249,8 @@
 
 	for (i = 0; i < num_pages; i++, index++) {
 		p = find_or_create_page(mapping, index, GFP_NOFS);
-		if (!p) {
-			WARN_ON(1);
+		if (!p)
 			goto free_eb;
-		}
 
 		spin_lock(&mapping->private_lock);
 		if (PagePrivate(p)) {