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From 91ed5edcdea79773f6918e739637521e47129b07 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 1 Jun 2020 17:10:27 +0200
Subject: [PATCH] parse-util: make return parameter optional in
 safe_atou16_full()

All other safe_atoXYZ_full() functions have the parameter optional,
let's make it optoinal here, too.

(cherry picked from commit aa85e4d3cef8ca8436e480bce9fa4ce72876b636)

Related: #1848373
---
 src/basic/parse-util.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
index 53d181dd60..7a7cefe6ff 100644
--- a/src/basic/parse-util.c
+++ b/src/basic/parse-util.c
@@ -559,7 +559,9 @@ int safe_atou16_full(const char *s, unsigned base, uint16_t *ret) {
         if ((unsigned long) (uint16_t) l != l)
                 return -ERANGE;
 
-        *ret = (uint16_t) l;
+        if (ret)
+                *ret = (uint16_t) l;
+
         return 0;
 }