---

yaml --- r: 201198 b: refs/heads/master c: 1fe9b6f h: refs/heads/master v: v3
git-mirror · Jul 26, 2010 · ae90857 · ae90857
1 parent e32698d
commit ae90857
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Showing 2 changed files with 4 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2e65a2075cc740b485ab203430bdf3459d5551b6
+refs/heads/master: 1fe9b6fef11771461e69ecd1bc8935a1c7c90cb5
diff --git a/trunk/drivers/virtio/virtio_ring.c b/trunk/drivers/virtio/virtio_ring.c
@@ -164,7 +164,8 @@ int virtqueue_add_buf_gfp(struct virtqueue *_vq,
 			  gfp_t gfp)
 {
 	struct vring_virtqueue *vq = to_vvq(_vq);
-	unsigned int i, avail, head, uninitialized_var(prev);
+	unsigned int i, avail, uninitialized_var(prev);
+	int head;
 
 	START_USE(vq);
 
@@ -174,7 +175,7 @@ int virtqueue_add_buf_gfp(struct virtqueue *_vq,
 	 * buffers, then go indirect. FIXME: tune this threshold */
 	if (vq->indirect && (out + in) > 1 && vq->num_free) {
 		head = vring_add_indirect(vq, sg, out, in, gfp);
-		if (head != vq->vring.num)
+		if (likely(head >= 0))
 			goto add_head;
 	}