diff --git a/configure.d/2_alloc_disk.conf b/configure.d/2_alloc_disk.conf
index 0686357..719f14f 100644
--- a/configure.d/2_alloc_disk.conf
+++ b/configure.d/2_alloc_disk.conf
@@ -33,8 +33,8 @@ apply() {
 					    struct blk_mq_tag_set *tag_set)
         {
 		*gd = blk_mq_alloc_disk(tag_set, NULL, NULL);
-		if (!(*gd))
-			return -ENOMEM;
+		if (IS_ERR(*gd))
+			return PTR_ERR(*gd);
 
 		*queue = (*gd)->queue;
 
@@ -53,8 +53,8 @@ apply() {
 					    struct blk_mq_tag_set *tag_set)
         {
 		*gd = blk_mq_alloc_disk(tag_set, NULL);
-		if (!(*gd))
-			return -ENOMEM;
+		if (IS_ERR(*gd))
+			return PTR_ERR(*gd);
 
 		*queue = (*gd)->queue;