From 6aad5bdd474f7d41e06ba4dc094f7db50f0f94cd Mon Sep 17 00:00:00 2001
From: Uwe Hermann <uwe@hermann-uwe.de>
Date: Sat, 2 May 2015 21:10:21 +0200
Subject: [PATCH] Fix a potential segfault in sp_get_config_*().

---
 serialport.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/serialport.c b/serialport.c
index 80527be..f2d2edc 100644
--- a/serialport.c
+++ b/serialport.c
@@ -2117,6 +2117,8 @@ SP_API enum sp_return sp_set_##x(struct sp_port *port, type x) { \
 SP_API enum sp_return sp_get_config_##x(const struct sp_port_config *config, \
                                         type *x) { \
 	TRACE("%p, %p", config, x); \
+	if (!x) \
+		RETURN_ERROR(SP_ERR_ARG, "Null result pointer"); \
 	if (!config) \
 		RETURN_ERROR(SP_ERR_ARG, "Null config"); \
 	*x = config->x; \