forked from Minki/linux
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: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Andreas Klinger <ak@it-klinger.de> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/20210509113354.660190-26-jic23@kernel.org
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@ -100,9 +100,11 @@ static int srf04_read(struct srf04_data *data)
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u64 dt_ns;
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u32 time_ns, distance_mm;
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if (data->gpiod_power)
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pm_runtime_get_sync(data->dev);
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if (data->gpiod_power) {
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ret = pm_runtime_resume_and_get(data->dev);
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if (ret < 0)
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return ret;
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}
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/*
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* just one read-echo-cycle can take place at a time
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* ==> lock against concurrent reading calls
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