# \[PATCH\] virtio\_net: Remove BUG() to aviod machine dead

- From: Xianting Tian \<hidden\>
- Date: 2021-05-18 09:47:01 
- List: netdev
- Page: https://ratatoskr.run/netdev/2021/05/1381801
- Thread: https://ratatoskr.run/netdev/2021/05/1381801/t.md

```text
When met error, we output a print to avoid a BUG().

Signed-off-by: Xianting Tian <redacted>
---
 drivers/net/virtio_net.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index c921ebf3ae82..a66174d13e81 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1647,9 +1647,8 @@ static int xmit_skb(struct send_queue *sq, struct sk_buff *skb)
 		hdr = skb_vnet_hdr(skb);

 	if (virtio_net_hdr_from_skb(skb, &hdr->hdr,
-				    virtio_is_little_endian(vi->vdev), false,
-				    0))
-		BUG();
+				virtio_is_little_endian(vi->vdev), false, 0))
+		return -EPROTO;

 	if (vi->mergeable_rx_bufs)
 		hdr->num_buffers = 0;
-- 
2.17.1
```