diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index 47f132d..c117fa8 100644
--- a/fs/romfs/super.c
+++ b/fs/romfs/super.c
@@ -528,7 +528,7 @@
 	pos = (ROMFH_SIZE + len + 1 + ROMFH_PAD) & ROMFH_MASK;
 
 	root = romfs_iget(sb, pos);
-	if (!root)
+	if (IS_ERR(root))
 		goto error;
 
 	sb->s_root = d_alloc_root(root);