[Qemu-block] [PATCH v2] block/nbd: Fix the regression to free leaked visitor

[Ashijeet Acharya]

This patch frees the leaked visitor in nbd_refresh_filename() and uses
visit_free() to fix it. The leak was introduced by the commit 491d6c7.

Signed-off-by: Ashijeet Acharya <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
---
Changes in v2:
- Include the regression commit id in the commit message
---
 block/nbd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/nbd.c b/block/nbd.c
index 8ef1438..ff9d01a 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -545,6 +545,7 @@ static void nbd_refresh_filename(BlockDriverState *bs, 
QDict *options)
         qdict_put(opts, "tls-creds", qstring_from_str(s->tlscredsid));
     }
 
+    visit_free(ov);
     qdict_flatten(opts);
     bs->full_open_options = opts;
 }
-- 
2.6.2