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authorMichael S. Tsirkin <mst@redhat.com>2019-12-09 11:47:24 -0500
committerMichael S. Tsirkin <mst@redhat.com>2020-01-05 07:03:03 -0500
commit8cd353ea0fbf0e334e015d833f612799be642296 (patch)
treeef864fb7e140ebc8693b77ec07f74c35d01e2303 /hw/virtio
parent722f8c51d8af223751dfb1d02de40043e8ba067e (diff)
virtio: make virtio_delete_queue idempotent
Let's make sure calling this twice is harmless - no known instances, but seems safer. Suggested-by: Pan Nengyuan <pannengyuan@huawei.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio')
-rw-r--r--hw/virtio/virtio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 31dd140990..6de3cfdc2c 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2337,6 +2337,7 @@ void virtio_delete_queue(VirtQueue *vq)
vq->handle_output = NULL;
vq->handle_aio_output = NULL;
g_free(vq->used_elems);
+ vq->used_elems = NULL;
}
void virtio_del_queue(VirtIODevice *vdev, int n)