On 31/12/14 08:59, Nicholas Mc Guire wrote:
> The timeout value to wait_for_completion_timeout is in jiffies but
> the value being passed seems like it was intended to by microseconds
> Note that the timeout was extremely long thus it might be too short
> now. In any case it probably should be passed through usecs_to_jiffies()
> or msecs_to_jiffies()
>
> patch is against linux-next 3.19.0-rc1 -next-20141226
>
> patch was only compile-tested x86_64_defcofnig + CONFIG_SPMI=m
> CONFIG_IIO=m, CONFIG_QCOM_SPMI_IADC=m
>
> Signed-off-by: Nicholas Mc Guire <der.h...@hofr.at>
Certainly suspicious and I'd draw the same conclusion you did!
Anyhow just waiting for Ivan to take a look as it's his driver.
Thanks,
Jonathan
> ---
> drivers/iio/adc/qcom-spmi-iadc.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/qcom-spmi-iadc.c
> b/drivers/iio/adc/qcom-spmi-iadc.c
> index b9666f2..3080562 100644
> --- a/drivers/iio/adc/qcom-spmi-iadc.c
> +++ b/drivers/iio/adc/qcom-spmi-iadc.c
> @@ -296,7 +296,8 @@ static int iadc_do_conversion(struct iadc_chip *iadc, int
> chan, u16 *data)
> if (iadc->poll_eoc) {
> ret = iadc_poll_wait_eoc(iadc, wait);
> } else {
> - ret = wait_for_completion_timeout(&iadc->complete, wait);
> + ret = wait_for_completion_timeout(&iadc->complete,
> + usecs_to_jiffies(wait));
> if (!ret)
> ret = -ETIMEDOUT;
> else
>
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