hw/rdma: Destroy list mutex when list is destroyed

List mutex should be destroyed when gs list gets destroyed.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Yuval Shaia <yuval.shaia.ml@gmail.com>
Message-Id: <20200413085738.11145-1-yuval.shaia.ml@gmail.com>
Reviewed-by: Marcel Apfelbaum<marcel.apfelbaum@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>

hw/rdma/rdma_utils.c

@@ -100,6 +100,7 @@ void rdma_protected_gslist_destroy(RdmaProtectedGSList *list)
 {
     if (list->list) {
         g_slist_free(list->list);
+        qemu_mutex_destroy(&list->lock);
         list->list = NULL;
     }
 }