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virtio_net: Fix error code in probe() 

[ Upstream commit 411ea23a76 ]

Set a negative error code intead of returning success if the MTU has
been changed to something invalid.

Fixes: fe36cbe067 ("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>
5.4-rM2-2.2.x-imx-squashed
Dan Carpenter 2020-12-04 17:23:16 +03:00 committed by Greg Kroah-Hartman
parent 5f70910832
commit 2d65ff873d
1 changed files with 1 additions and 0 deletions
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1
drivers/net/virtio_net.c
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@ -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;
}