hw/virtio: fix -Werror=maybe-uninitialized
../hw/virtio/vhost-shadow-virtqueue.c:545:13: error: ‘r’ may be used uninitialized [-Werror=maybe-uninitialized]
Set `r` to 0 at every loop, since we don't check vhost_svq_get_buf()
return value.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
diff --git a/hw/virtio/vhost-shadow-virtqueue.c b/hw/virtio/vhost-shadow-virtqueue.c
index fc5f408..3b2beae 100644
--- a/hw/virtio/vhost-shadow-virtqueue.c
+++ b/hw/virtio/vhost-shadow-virtqueue.c
@@ -526,10 +526,10 @@
size_t vhost_svq_poll(VhostShadowVirtqueue *svq, size_t num)
{
size_t len = 0;
- uint32_t r;
while (num--) {
int64_t start_us = g_get_monotonic_time();
+ uint32_t r = 0;
do {
if (vhost_svq_more_used(svq)) {
