diff --git a/lib/devres.c b/lib/devres.c
index 8235331..20afaf1 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -423,7 +423,7 @@
 	if (!iomap)
 		return;
 
-	for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+	for (i = 0; i < PCIM_IOMAP_MAX; i++) {
 		if (!(mask & (1 << i)))
 			continue;