Staging: hv: netvsc: Cleanup error return values in netvsc_send()

Use standard Linux error codes.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c
index 9cc126b..f7f4957 100644
--- a/drivers/staging/hv/netvsc.c
+++ b/drivers/staging/hv/netvsc.c
@@ -409,7 +409,7 @@
 	net_device = release_outbound_net_device(device);
 	if (!net_device) {
 		dev_err(&device->device, "No net device present!!");
-		return -1;
+		return -ENODEV;
 	}
 
 	/* Wait for all send completions */
@@ -499,7 +499,7 @@
 	if (!net_device) {
 		dev_err(&device->device, "net device (%p) shutting down..."
 			   "ignoring outbound packets", net_device);
-		return -2;
+		return -ENODEV;
 	}
 
 	sendMessage.hdr.msg_type = NVSP_MSG1_TYPE_SEND_RNDIS_PKT;