From 20ab09a1d5748adab351413a3569ade1db4a3c40 Mon Sep 17 00:00:00 2001
From: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
Date: Wed, 29 Aug 2018 20:42:38 +0200
Subject: [PATCH] lv_btn: ink bugfix

---
 lv_objx/lv_btn.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lv_objx/lv_btn.c b/lv_objx/lv_btn.c
index b6628b1c6..bf5fa0d78 100644
--- a/lv_objx/lv_btn.c
+++ b/lv_objx/lv_btn.c
@@ -546,6 +546,7 @@ static lv_res_t lv_btn_signal(lv_obj_t * btn, lv_signal_t sign, void * param)
         if(ink_obj != NULL && ink_obj != btn) {
         	lv_anim_del(ink_obj, (lv_anim_fp_t)lv_btn_ink_effect_anim);
         	lv_obj_invalidate(ink_obj);
+        	ink_obj = NULL;
         }
         /*Save the new data for inking and start it's animation if enabled*/
         if(ext->ink_in_time > 0) {