platform/chrome: cros_ec_typec: Flush pending work

When a PD notifier event arrives, a new work event won't be enqueued if
the current one hasn't completed. This could lead to dropped events.

So, flush any pending work before scheduling the new instance.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20210211193221.610867-1-pmalani@chromium.org
Signed-off-by: Benson Leung <bleung@chromium.org>

diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index db83c03..2fac95e 100644 (file)
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -1031,6 +1031,7 @@ static int cros_ec_typec_event(struct notifier_block *nb,
 {
        struct cros_typec_data *typec = container_of(nb, struct cros_typec_data, nb);
 
+       flush_work(&typec->port_work);
        schedule_work(&typec->port_work);
 
        return NOTIFY_OK;