hv_netvsc: make device_remove void

Always returns 0 and no callers check.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index b58e559..8031dee 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -173,7 +173,7 @@
 struct rndis_message;
 struct netvsc_device;
 int netvsc_device_add(struct hv_device *device, void *additional_info);
-int netvsc_device_remove(struct hv_device *device);
+void netvsc_device_remove(struct hv_device *device);
 int netvsc_send(struct hv_device *device,
 		struct hv_netvsc_packet *packet,
 		struct rndis_message *rndis_msg,
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 110bbb8..2ece27a 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -648,7 +648,7 @@
 /*
  * netvsc_device_remove - Callback when the root bus device is removed
  */
-int netvsc_device_remove(struct hv_device *device)
+void netvsc_device_remove(struct hv_device *device)
 {
 	struct net_device *ndev = hv_get_drvdata(device);
 	struct net_device_context *net_device_ctx = netdev_priv(ndev);
@@ -670,7 +670,6 @@
 	/* Release all resources */
 	vfree(net_device->sub_cb_buf);
 	free_netvsc_device(net_device);
-	return 0;
 }
 
 #define RING_AVAIL_PERCENT_HIWATER 20