From cce3553ecec825960739ad3a36e1630da54ce045 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 18 May 2015 23:23:17 +0200
Subject: [PATCH] resolved: fix crash when shutting down
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Reported by Cristian Rodríguez

http://lists.freedesktop.org/archives/systemd-devel/2015-May/031626.html
---
 src/shared/prioq.c | 6 ++++--
 src/shared/prioq.h | 2 +-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/shared/prioq.c b/src/shared/prioq.c
index 8af4c51c2..b89888be0 100644
--- a/src/shared/prioq.c
+++ b/src/shared/prioq.c
@@ -45,12 +45,14 @@ Prioq *prioq_new(compare_func_t compare_func) {
         return q;
 }
 
-void prioq_free(Prioq *q) {
+Prioq* prioq_free(Prioq *q) {
         if (!q)
-                return;
+                return NULL;
 
         free(q->items);
         free(q);
+
+        return NULL;
 }
 
 int prioq_ensure_allocated(Prioq **q, compare_func_t compare_func) {
diff --git a/src/shared/prioq.h b/src/shared/prioq.h
index d836b36cd..1c044b135 100644
--- a/src/shared/prioq.h
+++ b/src/shared/prioq.h
@@ -28,7 +28,7 @@ typedef struct Prioq Prioq;
 #define PRIOQ_IDX_NULL ((unsigned) -1)
 
 Prioq *prioq_new(compare_func_t compare);
-void prioq_free(Prioq *q);
+Prioq *prioq_free(Prioq *q);
 int prioq_ensure_allocated(Prioq **q, compare_func_t compare_func);
 
 int prioq_put(Prioq *q, void *data, unsigned *idx);
-- 
2.30.2