[PATCH] tools/virtio: virtio_test -h,--help should return directly

[Rong Tao <rtoax@foxmail.com>]

From: Rong Tao <rongtao@cestc.cn>

When we get help information, we should return directly, and we should not
execute test cases. Move the exit() directly into the help() function and
remove it from case '?'.

Signed-off-by: Rong Tao <rongtao@cestc.cn>
---
 tools/virtio/virtio_test.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index 120062f94590..6e348fbdc5d8 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -337,6 +337,8 @@ static void help(void)
 		" [--batch=random/N]"
 		" [--reset=N]"
 		"\n");
+
+	exit(0);
 }
 
 int main(int argc, char **argv)
@@ -354,14 +356,12 @@ int main(int argc, char **argv)
 		case -1:
 			goto done;
 		case '?':
-			help();
 			exit(2);
 		case 'e':
 			features &= ~(1ULL << VIRTIO_RING_F_EVENT_IDX);
 			break;
 		case 'h':
 			help();
-			goto done;
 		case 'i':
 			features &= ~(1ULL << VIRTIO_RING_F_INDIRECT_DESC);
 			break;
-- 
2.39.1