diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
index 371a87fbf26b..a0e2e11c1c39 100644
--- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h
+++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
@@ -130,6 +130,7 @@ struct wilc {
 	spinlock_t txq_spinlock;
 	/*protect rxq_entry_t receiver queue*/
 	struct mutex rxq_cs;
+	/* lock to protect hif access */
 	struct mutex hif_cs;
 
 	struct completion cfg_event;