[PATCH] virtio: queue variable should be initialized in vring_create_virtqueue

[Xin Long]

'queue' may be used uninitialized in vring_create_virtqueue, actually
when we compile kernel, gcc can also give this warning.

Fixes: 2a2d1382fe9d ("virtio: Add improved queue allocation API")
Signed-off-by: Xin Long <lucien.xin@xxxxxxxxx>
---
 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 5c802d4..ca6bfdd 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -1006,7 +1006,7 @@ struct virtqueue *vring_create_virtqueue(
 	const char *name)
 {
 	struct virtqueue *vq;
-	void *queue;
+	void *queue = NULL;
 	dma_addr_t dma_addr;
 	size_t queue_size_in_bytes;
 	struct vring vring;
-- 
2.1.0