diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index c58d2a9..5114544 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -807,7 +807,7 @@
 
 	R8A66597_DPRINT("%s\n", __func__);
 
-	memset(r8a66597, 0, sizeof(r8a66597));
+	memset(r8a66597, 0, sizeof(*r8a66597));
 	r8a66597->reg = CONFIG_R8A66597_BASE_ADDR;
 
 	disable_controller(r8a66597);