diff --git a/drivers/input/keyboard/rk29_keys.c b/drivers/input/keyboard/rk29_keys.c
index 711388cd3b18..16b56198709f 100755
--- a/drivers/input/keyboard/rk29_keys.c
+++ b/drivers/input/keyboard/rk29_keys.c
@@ -425,6 +425,8 @@ static int __devinit keys_probe(struct platform_device *pdev)
 	}
 	if(pdata->chn >= 0 && ddata->client);
 		adc_unregister(ddata->client);
+	if(pdata->chn >= 0)
+	        del_timer_sync(&ddata->timer);
  fail1:
  	platform_set_drvdata(pdev, NULL);
  fail0: