pimd: fix missing checking the return value for igmp command

`gm_join_new()` will return NULL in the case of running out of
socket/file resources.  Just add the check for it.

Signed-off-by: anlan_cs <anlan_cs@tom.com>

diff --git a/pimd/pim_iface.c b/pimd/pim_iface.c
index dcb6116012e5ec863bffbc7f12ab69e8009f7900..cdcca0ebe6e0c16e4ae25539b207fb129dc6526b 100644 (file)
--- a/pimd/pim_iface.c
+++ b/pimd/pim_iface.c
@@ -1322,7 +1322,10 @@ ferr_r pim_if_gm_join_add(struct interface *ifp, pim_addr group_addr,
                return ferr_ok();
        }
 
-       (void)gm_join_new(ifp, group_addr, source_addr);
+       if (!gm_join_new(ifp, group_addr, source_addr)) {
+               return ferr_cfg_invalid("can't join (%pPA,%pPA) on interface %s",
+                                       &source_addr, &group_addr, ifp->name);
+       }
 
        if (PIM_DEBUG_GM_EVENTS) {
                zlog_debug(