[Stable-9.1.1 22/32] migration/multifd: Fix p->iov leak in multifd-uadk.c

[Michael Tokarev]

From: Fabiano Rosas <farosas@suse.de>

The send_cleanup() hook should free the p->iov that was allocated at
send_setup(). This was missed because the UADK code is conditional on
the presence of the accelerator, so it's not tested by default.

Fixes: 819dd20636 ("migration/multifd: Add UADK initialization")
Reported-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
(cherry picked from commit 405e352d28c24991cacfdebccf67d56c4795cf6e)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/migration/multifd-uadk.c b/migration/multifd-uadk.c
index d12353fb21..9a582fc919 100644
--- a/migration/multifd-uadk.c
+++ b/migration/multifd-uadk.c
@@ -146,6 +146,8 @@ static void multifd_uadk_send_cleanup(MultiFDSendParams *p, 
Error **errp)
 
     multifd_uadk_uninit_sess(wd);
     p->compress_data = NULL;
+    g_free(p->iov);
+    p->iov = NULL;
 }
 
 static inline void prepare_next_iov(MultiFDSendParams *p, void *base,
-- 
2.39.5