hv/netvsc: fix handling of fallback to single queue mode

BugLink: https://bugs.launchpad.net/bugs/1814069
The netvsc device may need to fallback to running in single queue
mode if host side only wants to support single queue.

Recent change for handling mtu broke this in setup logic.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 3ffe64f1a641 ("hv_netvsc: split sub-channel setup into async and sync")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 916c5e1413be058d1c1f6e502db350df890730ce)
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: You-Sheng Yang <vicamo.yang@canonical.com>
Acked-by: Kleber Souza <kleber.souza@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 3857df77771a95ff88bbb86e11386b67acbb17f2..d9f75289cd0a4f9bcde88c689d3cf5f347b1e7ca 100644 (file)
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -1299,6 +1299,7 @@ out:
        /* setting up multiple channels failed */
        net_device->max_chn = 1;
        net_device->num_chn = 1;
+       return 0;
 
 err_dev_remv:
        rndis_filter_device_remove(dev, net_device);