rstp: Fix memory leak reported by valgrind.

test case: 1650 RSTP Single bridge, call stacks
    hmap_insert_at (hmap.h:235)
    rstp_port_set_port_number__ (rstp.c:744)
    rstp_add_port (rstp.c:1164)
    new_bridge (test-rstp.c:123)
    test_rstp_main (test-rstp.c:514)
    ovstest_wrapper_test_rstp_main__ (test-rstp.c:714)
    ovs_cmdl_run_command (command-line.c:121)
    main (ovstest.c:132)
fix it by adding hmap_destroy() at rstp_unref()

Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Co-authored-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Daniele Venturino <daniele.venturino@m3s.it>
Signed-off-by: Ben Pfaff <blp@ovn.org>

diff --git a/lib/rstp.c b/lib/rstp.c
index c1d5e7e..f1487cb 100644 (file)
--- a/lib/rstp.c
+++ b/lib/rstp.c
@@ -185,6 +185,7 @@ rstp_unref(struct rstp *rstp)
 
         list_remove(&rstp->node);
         ovs_mutex_unlock(&rstp_mutex);
+        hmap_destroy(&rstp->ports);
         free(rstp->name);
         free(rstp);
     }