From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 16 Oct 2012 13:26:16 +0000 (+1030)
Subject: virtio: tools: make it clear that virtqueue_add_buf() no longer returns > 0
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=de929b04450f2ec984c2febb1249d0e0f993d0a2;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

virtio: tools: make it clear that virtqueue_add_buf() no longer returns > 0

We simplified virtqueue_add_buf(), make it clear in the callers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index e626fa553c5a..a11028acf219 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -164,7 +164,7 @@ static void run_test(struct vdev_info *dev, struct vq_info *vq,
 				r = virtqueue_add_buf(vq->vq, &sl, 1, 0,
 						      dev->buf + started,
 						      GFP_ATOMIC);
-				if (likely(r >= 0)) {
+				if (likely(r == 0)) {
 					++started;
 					virtqueue_kick(vq->vq);
 				}
@@ -177,7 +177,7 @@ static void run_test(struct vdev_info *dev, struct vq_info *vq,
 				r = 0;
 			}
 
-		} while (r >= 0);
+		} while (r == 0);
 		if (completed == completed_before)
 			++spurious;
 		assert(completed <= bufs);