openwrt/target/linux/bcm27xx/patches-6.6/950-0302-Input-edt-ft54x6-Clean-up-timer-and-workqueue-on-rem.patch

From 917c246a1a6fab53041e5d5bb756e5b564871415 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Wed, 8 Sep 2021 14:46:17 +0100
Subject: [PATCH 0302/1085] Input: edt-ft54x6: Clean up timer and workqueue on
 remove

If no interrupt is defined then a timer and workqueue are used
to poll the controller.
On remove these were not being cleaned up correctly.

Fixes: ca61fdaba79f "Input: edt-ft5x06: Poll the device if no interrupt is
configured."

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 drivers/input/touchscreen/edt-ft5x06.c | 4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1438,6 +1438,10 @@ static void edt_ft5x06_ts_remove(struct
 {
 	struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
 
+	if (!client->irq) {
+		del_timer(&tsdata->timer);
+		cancel_work_sync(&tsdata->work_i2c_poll);
+	}
 	edt_ft5x06_ts_teardown_debugfs(tsdata);
 }