[PULL v2 18/20] nbd: Drop dead code spotted by Coverity

Kevin Wolf posted 20 patches 2 years, 10 months ago
Maintainers: John Snow <jsnow@redhat.com>, Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Eric Blake <eblake@redhat.com>, Xie Yongji <xieyongji@bytedance.com>, Coiby Xu <Coiby.Xu@gmail.com>, Stefan Hajnoczi <stefanha@redhat.com>, Fam Zheng <fam@euphon.net>, Ilya Dryomov <idryomov@gmail.com>, Peter Lieven <pl@kamp.de>, "Michael S. Tsirkin" <mst@redhat.com>, Stefano Stabellini <sstabellini@kernel.org>, Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul@xen.org>, Paolo Bonzini <pbonzini@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Markus Armbruster <armbru@redhat.com>
There is a newer version of this series
[PULL v2 18/20] nbd: Drop dead code spotted by Coverity
Posted by Kevin Wolf 2 years, 10 months ago
From: Eric Blake <eblake@redhat.com>

CID 1488362 points out that the second 'rc >= 0' check is now dead
code.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Fixes: 172f5f1a40(nbd: remove peppering of nbd_client_connected)
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20220516210519.76135-1-eblake@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/nbd.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/block/nbd.c b/block/nbd.c
index 6085ab1d2c..7f5f50ec46 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -521,12 +521,8 @@ static int coroutine_fn nbd_co_send_request(BlockDriverState *bs,
     if (qiov) {
         qio_channel_set_cork(s->ioc, true);
         rc = nbd_send_request(s->ioc, request);
-        if (rc >= 0) {
-            if (qio_channel_writev_all(s->ioc, qiov->iov, qiov->niov,
-                                       NULL) < 0) {
-                rc = -EIO;
-            }
-        } else if (rc >= 0) {
+        if (rc >= 0 && qio_channel_writev_all(s->ioc, qiov->iov, qiov->niov,
+                                              NULL) < 0) {
             rc = -EIO;
         }
         qio_channel_set_cork(s->ioc, false);
-- 
2.35.3