Staging: hv: netvsc: Cleanup error returns in rndis_filter_init_device()

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>

drivers/staging/hv/rndis_filter.c

@@ -562,7 +562,7 @@ static int rndis_filter_init_device(struct rndis_device *dev)
 	request = get_rndis_request(dev, REMOTE_NDIS_INITIALIZE_MSG,
 			RNDIS_MESSAGE_SIZE(struct rndis_initialize_request));
 	if (!request) {
-		ret = -1;
+		ret = -ENOMEM;
 		goto Cleanup;
 	}
 
@@ -596,7 +596,7 @@ static int rndis_filter_init_device(struct rndis_device *dev)
 		ret = 0;
 	} else {
 		dev->state = RNDIS_DEV_UNINITIALIZED;
-		ret = -1;
+		ret = -EINVAL;
 	}
 
 Cleanup: