From cd28099ad838d8ddef59034979bdef8aea462ceb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Wed, 20 Feb 2019 18:21:58 +0100
Subject: [PATCH] module/i3: don't try to strdup() a NULL pointer

---
 modules/i3.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/modules/i3.c b/modules/i3.c
index d7210e7..b451783 100644
--- a/modules/i3.c
+++ b/modules/i3.c
@@ -368,7 +368,9 @@ handle_window_event(int type, const struct json_object *json, void *_mod)
     }
 
     free(ws->window.title);
-    ws->window.title = strdup(json_object_get_string(name));
+
+    const char *title = json_object_get_string(name);
+    ws->window.title = title != NULL ? strdup(title) : NULL;
     ws->window.id = json_object_get_int(id);
 
     /* If PID has changed, update application name from /proc/<pid>/comm */