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Subject[PATCH] virtio_ring: add an error code check in virtqueue_resize
Date
virtqueue_resize_packed() or virtqueue_resize_split() can return
error code if failed, so add a check for this.

Signed-off-by: Su Hui <suhui@nfschina.com>
---

I'm not sure that return directly is right or not,
maybe there are some process should do before return.

drivers/virtio/virtio_ring.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 51d8f3299c10..cf662c3a755b 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -2759,6 +2759,9 @@ int virtqueue_resize(struct virtqueue *_vq, u32 num,
else
err = virtqueue_resize_split(_vq, num);

+ if (err)
+ return err;
+
return virtqueue_enable_after_reset(_vq);
}
EXPORT_SYMBOL_GPL(virtqueue_resize);
--
2.30.2
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