From 181e8d3da7b8382b9e62d53417a4502a84fdcfdb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Hundeb=C3=B8ll?= <martin@geanix.com>
Date: Wed, 3 Jul 2019 20:09:47 +0200
Subject: [PATCH] atutil: guard call to g_hash_table_destroy()

Glib emits a warning when g_hash_table_destroy() is called on a NULL
pointer:

  GLib-CRITICAL **: 13:27:40.269: g_hash_table_destroy: assertion 'hash_table != NULL' failed

Add a check to avoid this warning.
---
 drivers/atmodem/atutil.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/atmodem/atutil.c b/drivers/atmodem/atutil.c
index 1db524e3..bbdb01c4 100644
--- a/drivers/atmodem/atutil.c
+++ b/drivers/atmodem/atutil.c
@@ -769,7 +769,9 @@ GAtChat *at_util_open_device(struct ofono_modem *modem, const char *key,
 	}
 
 	channel = g_at_tty_open(device, options);
-	g_hash_table_destroy(options);
+
+	if (options)
+		g_hash_table_destroy(options);
 
 	if (channel == NULL)
 		return NULL;