device-mapper-multipath/0050-multipathd-unwatch_all_dmevents-check-if-waiter-is-i.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Wed, 23 Sep 2020 18:45:30 +0200
Subject: [PATCH] multipathd: unwatch_all_dmevents: check if waiter is
 initialized

Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
 multipathd/dmevents.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/multipathd/dmevents.c b/multipathd/dmevents.c
index b561cbfd..f52f5970 100644
--- a/multipathd/dmevents.c
+++ b/multipathd/dmevents.c
@@ -257,6 +257,8 @@ void unwatch_all_dmevents(void)
 	struct dev_event *dev_evt;
 	int i;
 
+	if (!waiter)
+		return;
 	pthread_mutex_lock(&waiter->events_lock);
 	vector_foreach_slot(waiter->events, dev_evt, i)
 		free(dev_evt);
-- 
2.17.2