From ace33ff2c18c732e7ac30c49d95f7c35e06d7cee Mon Sep 17 00:00:00 2001
From: Thomas Schmucker <ts@its1.de>
Date: Fri, 4 Sep 2020 09:16:44 +0200
Subject: fix: Prüfe, ob 'data' wirklich dereferenziert werden kann
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---
 queue.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'queue.c')

diff --git a/queue.c b/queue.c
index e26acbb..2fb9c72 100644
--- a/queue.c
+++ b/queue.c
@@ -47,7 +47,10 @@ queue_get(struct queue *queue, T *data)
 {
 	if ( queue->head != NULL ) {
 		struct queue_item *next = queue->head->next;
-		*data                   = queue->head->data;
+
+		if ( data != NULL ) {
+			*data = queue->head->data;
+		}
 		free(queue->head);
 		queue->head = next;
 
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