From 3e984ef657170143868ef7b342cb86691600e39b Mon Sep 17 00:00:00 2001
From: Kosma Moczek <kosma@kosma.pl>
Date: Thu, 2 Jun 2022 22:41:02 +0200
Subject: [PATCH] minmea.c - Fix dereference of null pointer error caught by
 clang's scan-build

---
 minmea.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/minmea.c b/minmea.c
index 98bc215..a77dc2c 100644
--- a/minmea.c
+++ b/minmea.c
@@ -93,6 +93,10 @@ bool minmea_scan(const char *sentence, const char *format, ...)
 {
     bool result = false;
     bool optional = false;
+
+    if (sentence == NULL)
+        return false;
+
     va_list ap;
     va_start(ap, format);