From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 411ea23a76526e6efed0b601abb603d3c981b333 ]
Set a negative error code intead of returning success if the MTU has been changed to something invalid.
Fixes: fe36cbe0671e ("virtio_net: clear MTU when out of range") Reported-by: Robert Buhren robert.buhren@sect.tu-berlin.de Reported-by: Felicitas Hetzelt file@sect.tu-berlin.de Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Link: https://lore.kernel.org/r/X8pGVJSeeCdII1Ys@mwanda Signed-off-by: Michael S. Tsirkin mst@redhat.com Acked-by: Jason Wang jasowang@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/virtio_net.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 99e1a7bc06886..7cc8f405be1ad 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -3114,6 +3114,7 @@ static int virtnet_probe(struct virtio_device *vdev) dev_err(&vdev->dev, "device MTU appears to have changed it is now %d < %d", mtu, dev->min_mtu); + err = -EINVAL; goto free; }