virtio_net: Remove BUG() to avoid machine dead

[ Upstream commit 85eb1389458d134bdb75dad502cc026c3753a619 ]

We should not directly BUG() when there is hdr error, it is
better to output a print when such error happens. Currently,
the caller of xmit_skb() already did it.

Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index e2c6c56..91e0e62 100644 (file)
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1563,7 +1563,7 @@ static int xmit_skb(struct send_queue *sq, struct sk_buff *skb)
        if (virtio_net_hdr_from_skb(skb, &hdr->hdr,
                                    virtio_is_little_endian(vi->vdev), false,
                                    0))
-               BUG();
+               return -EPROTO;
 
        if (vi->mergeable_rx_bufs)
                hdr->num_buffers = 0;