From: Subash Abhinov Kasiviswanathan Date: Tue, 12 Dec 2017 00:30:12 +0000 (-0700) Subject: net: qualcomm: rmnet: Allow only one rmnet dev per muxid per real dev X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e971a9a09da356d1fc7be1d815a3a379590d2835;p=linux.git net: qualcomm: rmnet: Allow only one rmnet dev per muxid per real dev 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 Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_vnd.c index 9caa5e3874509..5bb29f44d114a 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;