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authorRusty Russell <rusty@rustcorp.com.au>2014-03-13 11:23:39 +1030
committerRusty Russell <rusty@rustcorp.com.au>2014-03-13 11:27:55 +1030
commita7c58146cf9a782113629021ba5420582fef265e (patch)
tree605daa5c14e9b9f343a0fc6061bedd9623c4f62a /drivers/net/virtio_net.c
parent1f74ef0f2d7d692fcd615621e0e734c3e7771413 (diff)
downloadop-kernel-dev-a7c58146cf9a782113629021ba5420582fef265e.zip
op-kernel-dev-a7c58146cf9a782113629021ba5420582fef265e.tar.gz
virtio_net: don't crash if virtqueue is broken.
A bad implementation of virtio might cause us to mark the virtqueue broken: we'll dev_err() in that case, and the device is useless, but let's not BUG_ON(). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'drivers/net/virtio_net.c')
-rw-r--r--drivers/net/virtio_net.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 5632a99..274e997 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -938,7 +938,7 @@ static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd,
sgs[out_num] = &stat;
BUG_ON(out_num + 1 > ARRAY_SIZE(sgs));
- BUG_ON(virtqueue_add_sgs(vi->cvq, sgs, out_num, 1, vi, GFP_ATOMIC) < 0);
+ virtqueue_add_sgs(vi->cvq, sgs, out_num, 1, vi, GFP_ATOMIC);
if (unlikely(!virtqueue_kick(vi->cvq)))
return status == VIRTIO_NET_OK;
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