staging: wilc1000: change return type to 'void' for wilc_frame_register()

Cleanup patch to use 'void' return type for wilc_frame_register(), as
its return value is not used.
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wilc1000/host_interface.c

@@ -3641,14 +3641,14 @@ int wilc_listen_state_expired(struct wilc_vif *vif, u32 session_id)
 	return result;
 }
 
-int wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg)
+void wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg)
 {
 	int result;
 	struct host_if_msg *msg;
 
 	msg = wilc_alloc_work(vif, handle_register_frame, false);
 	if (IS_ERR(msg))
-		return PTR_ERR(msg);
+		return;
 
 	switch (frame_type) {
 	case ACTION:
@@ -3670,8 +3670,6 @@ int wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg)
 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
 		kfree(msg);
 	}
-
-	return result;
 }
 
 int wilc_add_beacon(struct wilc_vif *vif, u32 interval, u32 dtim_period,

drivers/staging/wilc1000/host_interface.h

@@ -348,7 +348,7 @@ int wilc_remain_on_channel(struct wilc_vif *vif, u32 session_id,
 			   wilc_remain_on_chan_ready ready,
 			   void *user_arg);
 int wilc_listen_state_expired(struct wilc_vif *vif, u32 session_id);
-int wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg);
+void wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg);
 int wilc_set_wfi_drv_handler(struct wilc_vif *vif, int index, u8 mode,
 			     u8 ifc_id);
 int wilc_set_operation_mode(struct wilc_vif *vif, u32 mode);