[PATCH 1/2] Write shared touch initial status only once
From: Ping Cheng <hidden>
Date: 2026-09-16 02:03:29
Also in:
stable
Subsystem:
hid core layer, hid wacom driver, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Ping Cheng, Jason Gerecke, Linus Torvalds
From: Ping Cheng <ping.cheng@wacom.com> To match the same logic as with other shared data during registeration, use WRITE_ONCE for is_touch_on too. Cc: stable@vger.kernel.org Signed-off-by: Ping Cheng <ping.cheng@wacom.com> --- drivers/hid/wacom_sys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 8dc7aa1c0a26..33fa491fba92 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c@@ -2386,7 +2386,7 @@ static void wacom_set_shared_values(struct wacom_wac *wacom_wac) * match historic default. */ if (wacom_wac->is_soft_touch_switch) - wacom_wac->shared->is_touch_on = true; + WRITE_ONCE(wacom_wac->shared->is_touch_on, true); } if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) {
--
2.55.0