dialogs.c: Don't crash during refresh when no device is connected

active_pid does not get reset when the device is unplugged, but the strings contained in usb_pids are freed. Make sure to not call strdup() on NULL to avoid a crash. Signed-off-by: Lars-Peter Clausen <[email protected]>
ukulili · Jan 3, 2017 · ceb9252 · ceb9252
1 parent 192dd67
commit ceb9252
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/dialogs.c b/dialogs.c
@@ -355,7 +355,7 @@ static void refresh_usb()
 	char *current = NULL;
 
 	/* get the active setting (if there is one) */
-	if(active_pid != -1)
+	if(active_pid != -1 && usb_pids[active_pid])
 		current = strdup(usb_pids[active_pid]);
 
 	for(i = 0; i < 127 ; i++) {