From 84a4dccb18929038ac351b6864bff20ed95776e9 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Thu, 14 Nov 2024 15:20:24 +0100
Subject: [PATCH] libmultipath: don't print error message if WATCHDOG_USEC is 0

WATCHDOG_USEC may be set to 0, which means that the watchdog
is disabled in systemd.

Fixes: 9366cfb ("multipathd: Implement systemd watchdog integration")
Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Benjamin Marzinski <bmarzins@redhat.com>
---
 libmultipath/config.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libmultipath/config.c b/libmultipath/config.c
index 0e3a5cc1..226ddecb 100644
--- a/libmultipath/config.c
+++ b/libmultipath/config.c
@@ -865,6 +865,9 @@ static void set_max_checkint_from_watchdog(struct config *conf)
 	unsigned long checkint;
 
 	if (envp && sscanf(envp, "%lu", &checkint) == 1) {
+		if (checkint == 0)
+			/* watchdog disabled */
+			return;
 		/* Value is in microseconds */
 		checkint /= 1000000;
 		if (checkint < 1 || checkint > UINT_MAX) {