[Qemu-trivial] [PATCH] virito-blk: drop duplicate check

[arei.gonglei]

From: Gonglei <address@hidden>

in_num = req->elem.in_num, and req->elem.in_num is
checked in line 489, so the check about in_num variable
is superflous, let's drop it.

Signed-off-by: Gonglei <address@hidden>
---
 hw/block/virtio-blk.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index cd539aa..cce552a 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -499,8 +499,7 @@ void virtio_blk_handle_request(VirtIOBlockReq *req, 
MultiReqBuffer *mrb)
 
     iov_discard_front(&iov, &out_num, sizeof(req->out));
 
-    if (in_num < 1 ||
-        in_iov[in_num - 1].iov_len < sizeof(struct virtio_blk_inhdr)) {
+    if (in_iov[in_num - 1].iov_len < sizeof(struct virtio_blk_inhdr)) {
         error_report("virtio-blk request inhdr too short");
         exit(1);
     }
-- 
1.7.12.4