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authorNicholas Mc Guire <hofrat@osadl.org>2018-07-23 11:18:38 +0200
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2018-07-28 12:15:03 +0100
commitcebc4585f6ac01c3ea8fa8a8dd22848747f24d05 (patch)
treead41723ba36c61c32c99e04d6e050509337c7dc6 /drivers/iio
parent1b3bd8592780c87c5eddabbe98666b086bbaee36 (diff)
downloadlinux-cebc4585f6ac01c3ea8fa8a8dd22848747f24d05.tar.bz2
iio: ad_sigma_delta: use unsigned long for timeout
wait_for_completion_timeout returns unsigned long not int so an appropriate variable is declared and the assignment and check fixed up. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/adc/ad_sigma_delta.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index cf1b048b0665..fc9510716ac7 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -209,6 +209,7 @@ static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
unsigned int mode, unsigned int channel)
{
int ret;
+ unsigned long timeout;
ret = ad_sigma_delta_set_channel(sigma_delta, channel);
if (ret)
@@ -224,8 +225,8 @@ static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
sigma_delta->irq_dis = false;
enable_irq(sigma_delta->spi->irq);
- ret = wait_for_completion_timeout(&sigma_delta->completion, 2*HZ);
- if (ret == 0) {
+ timeout = wait_for_completion_timeout(&sigma_delta->completion, 2 * HZ);
+ if (timeout == 0) {
sigma_delta->irq_dis = true;
disable_irq_nosync(sigma_delta->spi->irq);
ret = -EIO;