migration/multifd: Add a couple of asserts for p->iov

Check that p->iov is indeed always allocated and freed by the
MultiFDMethods hooks.

Suggested-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>

diff --git a/migration/multifd.c b/migration/multifd.c
index 2a8cd9174ce86aa6a005af1e146003b7a39acc31..9b200f4ad912319ef9a20cbd8c876be1af080968 100644 (file)
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -466,6 +466,7 @@ static bool multifd_send_cleanup_channel(MultiFDSendParams *p, Error **errp)
     g_free(p->packet);
     p->packet = NULL;
     multifd_send_state->ops->send_cleanup(p, errp);
+    assert(!p->iov);
 
     return *errp == NULL;
 }
@@ -871,6 +872,7 @@ bool multifd_send_setup(void)
             migrate_set_error(s, local_err);
             goto err;
         }
+        assert(p->iov);
     }
 
     return true;