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* [PATCH] virtio: fix error handling for debug builds
@ 2016-08-03  4:21 Michael S. Tsirkin
  0 siblings, 0 replies; only message in thread
From: Michael S. Tsirkin @ 2016-08-03  4:21 UTC (permalink / raw)
  To: linux-kernel; +Cc: virtualization, Wei Yongjun

On error, virtqueue_add calls START_USE but not
END_USE. Thankfully that's normally empty anyway,
but might not be when debugging. Fix it up.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 drivers/virtio/virtio_ring.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 5ed228d..e383ecd 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -428,6 +428,7 @@ unmap_release:
 	if (indirect)
 		kfree(desc);
 
+	END_USE(vq);
 	return -EIO;
 }
 
-- 
MST

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2016-08-03  4:21 [PATCH] virtio: fix error handling for debug builds Michael S. Tsirkin

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