[PATCH] virtio_ring: Initialize vring_size_in_bytes

[trix]

From: Tom Rix <trix@xxxxxxxxxx>

On the clang build, there is this error
virtio_ring.c:1772:26: error: variable 'ring_size_in_bytes'
  is uninitialized when used here
  vring_free_queue(vdev, ring_size_in_bytes,
                         ^~~~~~~~~~~~~~~~~~

ring_dma_addr was intialized twice, once with the ring_size_in_bytes.
value.  So fix typo.

Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
---
 drivers/virtio/virtio_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 905c882600618..b2b567ebb9120 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -1756,7 +1756,7 @@ static void vring_free_vring_packed(struct vring_packed *vring,
 	ring                  = vring->ring;
 	driver                = vring->driver;
 	device                = vring->device;
-	ring_dma_addr         = vring->ring_size_in_bytes;
+	ring_size_in_bytes    = vring->ring_size_in_bytes;
 	event_size_in_bytes   = vring->event_size_in_bytes;
 	ring_dma_addr         = vring->ring_dma_addr;
 	driver_event_dma_addr = vring->driver_event_dma_addr;
-- 
2.26.3