[PULL 3/5] nbd: fix uninitialized variable warning

[Laurent Vivier <laurent@vivier.eu>]

From: Pan Nengyuan <pannengyuan@huawei.com>

Fixes:
/mnt/sdb/qemu/nbd/server.c: In function 'nbd_handle_request':
/mnt/sdb/qemu/nbd/server.c:2313:9: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
     int ret;

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200108025132.46956-1-pannengyuan@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 nbd/server.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/nbd/server.c b/nbd/server.c
index 24ebc1a80571..87fcd2e7bfac 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -2384,20 +2384,12 @@ static coroutine_fn int nbd_handle_request(NBDClient *client,
                                                !client->export_meta.bitmap,
                                                NBD_META_ID_BASE_ALLOCATION,
                                                errp);
-                if (ret < 0) {
-                    return ret;
-                }
-            }
-
-            if (client->export_meta.bitmap) {
+            } else {              /* client->export_meta.bitmap */
                 ret = nbd_co_send_bitmap(client, request->handle,
                                          client->exp->export_bitmap,
                                          request->from, request->len,
                                          dont_fragment,
                                          true, NBD_META_ID_DIRTY_BITMAP, errp);
-                if (ret < 0) {
-                    return ret;
-                }
             }
 
             return ret;
-- 
2.24.1