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From: Jeff Mahoney <jeffm@suse.com>
To: "Michael S. Tsirkin" <mst@redhat.com>,
	virtualization@lists.linux-foundation.org
Subject: [PATCH] virtio: fix "warning: ‘queue’ may be used uninitialized"
Date: Mon, 4 Apr 2016 14:14:19 -0400	[thread overview]
Message-ID: <5702AEFB.5090701@suse.com> (raw)

This fixes the following warning:
drivers/virtio/virtio_ring.c:1032:5: warning: ‘queue’ may be used
uninitialized in this function

The conditions that govern when queue is set aren't apparent to gcc.

Setting queue = NULL clears the warning.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---

 drivers/virtio/virtio_ring.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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;

-- 
Jeff Mahoney
SUSE Labs
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             reply	other threads:[~2016-04-04 18:14 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-04 18:14 Jeff Mahoney [this message]
2016-04-05  8:04 ` [PATCH] virtio: fix "warning: ‘queue’ may be used uninitialized" Michael S. Tsirkin
2016-04-05 13:34   ` Jeff Mahoney
2016-04-05 14:00     ` Michael S. Tsirkin

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