diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 937d580..575e08b 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -636,7 +636,7 @@
 }
 
 static const struct platform_device_id *platform_match_id(
-			struct platform_device_id *id,
+			const struct platform_device_id *id,
 			struct platform_device *pdev)
 {
 	while (id->name[0]) {