diff mbox series

[net-next,v3,3/6] net: qualcomm: rmnet: Allow only one rmnet dev per muxid per real dev

Message ID 1513038615-16407-4-git-send-email-subashab@codeaurora.org
State Accepted, archived
Delegated to: David Miller
Headers show
Series net: qualcomm: rmnet: Configuration options | expand

Commit Message

Subash Abhinov Kasiviswanathan Dec. 12, 2017, 12:30 a.m. UTC 
Upon de-multiplexing data from one real dev, the packets can be sent
to an unique rmnet device for a given mux id.

Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
---
 drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
index 9caa5e3..5bb29f4 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c
@@ -185,6 +185,9 @@  int rmnet_vnd_newlink(u8 id, struct net_device *rmnet_dev,
 	if (ep->egress_dev)
 		return -EINVAL;
 
+	if (rmnet_get_endpoint(port, id))
+		return -EBUSY;
+
 	rc = register_netdevice(rmnet_dev);
 	if (!rc) {
 		ep->egress_dev = rmnet_dev;