Commit 9009a732 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

iio: proximity: srf04: Use pm_runtime_resume_and_get() and handle error 



Previously this driver used pm_runtime_sync_get() and did not handle any
errors that occurred.  Moving to the new pm_runtime_resume_and_get() +
handle errors.

Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andreas Klinger <ak@it-klinger.de>
Reviewed-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20210509113354.660190-26-jic23@kernel.org
parent db9c6c2e

drivers/iio/proximity/srf04.c

+5 −3
Original line number Diff line number Diff line
@@ -100,9 +100,11 @@ static int srf04_read(struct srf04_data *data) 
	u64 dt_ns;

	u32 time_ns, distance_mm;



	if (data->gpiod_power)

		pm_runtime_get_sync(data->dev);



	if (data->gpiod_power) {

		ret = pm_runtime_resume_and_get(data->dev);

		if (ret < 0)

			return ret;

	}

	/*

	 * just one read-echo-cycle can take place at a time

	 * ==> lock against concurrent reading calls