[PATCH v6 9/9] virtio-net: add peer_deleted check in virtio_net_handle_rx

From: Cindy Lu <lulu@redhat.com>
To: lulu@redhat.com, mst@redhat.com, jasowang@redhat.com,
	qemu-devel@nongnu.org
Subject: [PATCH v6 9/9] virtio-net: add peer_deleted check in virtio_net_handle_rx
Date: Tue, 27 Apr 2021 11:39:51 +0800	[thread overview]
Message-ID: <20210427033951.29805-10-lulu@redhat.com> (raw)
In-Reply-To: <20210427033951.29805-1-lulu@redhat.com>

During the test, We found this fuction will continue running
while the peer is deleted, this will case the crash. so add
check for this.

Signed-off-by: Cindy Lu <lulu@redhat.com>
---
 hw/net/virtio-net.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 43b912453a..1be3f8e76f 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -1403,7 +1403,9 @@ static void virtio_net_handle_rx(VirtIODevice *vdev, VirtQueue *vq)
 {
     VirtIONet *n = VIRTIO_NET(vdev);
     int queue_index = vq2q(virtio_get_queue_index(vq));
-
+    if (n->nic->peer_deleted) {
+        return;
+    }
     qemu_flush_queued_packets(qemu_get_subqueue(n->nic, queue_index));
 }
 
-- 
2.21.3


