Merge pull request #1421 from turoksama/master

Fix a crash with null indev input in lv_indev_wait_release()

src/lv_core/lv_indev.c

@@ -297,6 +297,7 @@ void lv_indev_get_vect(const lv_indev_t * indev, lv_point_t * point)
  */
 void lv_indev_wait_release(lv_indev_t * indev)
 {
+    if(indev == NULL)return;
     indev->proc.wait_until_release = 1;
 }