[PATCH 2/6] block: bdrv_reopen_multiple(): fix leak of tran object

[Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>]

We have one path, where tran object is created, but we don't touch and
don't free it in any way: "goto cleanup" in first loop with calls to
bdrv_flush().

Fix it simply moving tran_new() call below that loop.

Reported-by: Coverity (CID 1452772)
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Fixes: 72373e40fbc7e4218061a8211384db362d3e7348
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 block.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/block.c b/block.c
index 728aa34b2f..c4023ab4f4 100644
--- a/block.c
+++ b/block.c
@@ -4047,7 +4047,7 @@ int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp)
 {
     int ret = -1;
     BlockReopenQueueEntry *bs_entry, *next;
-    Transaction *tran = tran_new();
+    Transaction *tran;
     g_autoptr(GHashTable) found = NULL;
     g_autoptr(GSList) refresh_list = NULL;
 
@@ -4061,6 +4061,8 @@ int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp)
         }
     }
 
+    tran = tran_new();
+
     QTAILQ_FOREACH(bs_entry, bs_queue, entry) {
         assert(bs_entry->state.bs->quiesce_counter > 0);
         ret = bdrv_reopen_prepare(&bs_entry->state, bs_queue, tran, errp);
-- 
2.29.2