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iio: pressure: zpa2326: report interrupted case as failure

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If the timeout-case prints a warning message then probably the interrupted
case should also. Further, wait_for_completion_interruptible_timeout()
returns long not int.

Fixes: commit 03b262f2bb ("iio:pressure: initial zpa2326 barometer support")
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Nicholas Mc Guire 2017-05-14 10:43:55 +02:00 committed by Jonathan Cameron
parent 6fb34812c2
commit e7215fe4d5
1 changed files with 11 additions and 7 deletions
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18
drivers/iio/pressure/zpa2326.c
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@ -867,12 +867,13 @@ static int zpa2326_wait_oneshot_completion(const struct iio_dev *indio_dev,
{
int ret;
unsigned int val;
long timeout;
zpa2326_dbg(indio_dev, "waiting for one shot completion interrupt");
ret = wait_for_completion_interruptible_timeout(
timeout = wait_for_completion_interruptible_timeout(
&private->data_ready, ZPA2326_CONVERSION_JIFFIES);
if (ret > 0)
if (timeout > 0)
/*
* Interrupt handler completed before timeout: return operation
* status.
@ -882,13 +883,16 @@ static int zpa2326_wait_oneshot_completion(const struct iio_dev *indio_dev,
/* Clear all interrupts just to be sure. */
regmap_read(private->regmap, ZPA2326_INT_SOURCE_REG, &val);
if (!ret)
if (!timeout) {
/* Timed out. */
zpa2326_warn(indio_dev, "no one shot interrupt occurred (%ld)",
timeout);
ret = -ETIME;
if (ret != -ERESTARTSYS)
zpa2326_warn(indio_dev, "no one shot interrupt occurred (%d)",
ret);
} else if (timeout < 0) {
zpa2326_warn(indio_dev,
"wait for one shot interrupt cancelled");
ret = -ERESTARTSYS;
}
return ret;
}