--- a/arch/mips/ath79/dev-wmac.c
+++ b/arch/mips/ath79/dev-wmac.c
@@ -24,7 +24,10 @@
 #include "dev-wmac.h"
 
 static u8 ath79_wmac_mac[ETH_ALEN];
-static struct ath9k_platform_data ath79_wmac_data;
+
+static struct ath9k_platform_data ath79_wmac_data = {
+	.led_pin = -1,
+};
 
 static struct resource ath79_wmac_resources[] = {
 	{
