[PATCH 5.10 490/717] virtio_net: Fix error code in probe()

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpen...@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.buh...@sect.tu-berlin.de>
Reported-by: Felicitas Hetzelt <f...@sect.tu-berlin.de>
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Link: https://lore.kernel.org/r/X8pGVJSeeCdII1Ys@mwanda
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
Acked-by: Jason Wang <jasow...@redhat.com>
Signed-off-by: Sasha Levin <sas...@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 21b71148c5324..34bb95dd92392 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -3072,6 +3072,7 @@ 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;
                }
 
-- 
2.27.0