From: Daniel Hung-yu Wu <h...@google.com> Reboot or shutdown during delayed works could corrupt communication with EC and certain I2C controller may not be able to recover from the error state.
This patch registers a shutdown callback used to cancel the debugfs log worker thread. Signed-off-by: Daniel Hung-yu Wu <h...@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balle...@collabora.com> --- Changes in v2: - [6/8] This patch is new in this series. drivers/mfd/cros_ec_dev.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c index fd7f0068fb45..354eb9e01d52 100644 --- a/drivers/mfd/cros_ec_dev.c +++ b/drivers/mfd/cros_ec_dev.c @@ -535,6 +535,14 @@ static int ec_device_remove(struct platform_device *pdev) return 0; } +static void ec_device_shutdown(struct platform_device *pdev) +{ + struct cros_ec_dev *ec = dev_get_drvdata(&pdev->dev); + + /* Be sure to clear up debugfs delayed works */ + cros_ec_debugfs_remove(ec); +} + static const struct platform_device_id cros_ec_id[] = { { DRV_NAME, 0 }, { /* sentinel */ }, @@ -577,6 +585,7 @@ static struct platform_driver cros_ec_dev_driver = { }, .probe = ec_device_probe, .remove = ec_device_remove, + .shutdown = ec_device_shutdown, }; static int __init cros_ec_dev_init(void) -- 2.16.1