iio: vf610_adc: cleanup wait_for_completion return handling

return type of wait_for_completion_timeout is unsigned long not int, this
patch only fixes up the return handling.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index 8ec353c01d98e02e7074df9d4d295ec19f772f09..5b72d170fd36e580721053cc588004f6f779c456 100644 (file)
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -259,7 +259,6 @@ static void vf610_adc_cfg_post_set(struct vf610_adc *info)
 static void vf610_adc_calibration(struct vf610_adc *info)
 {
        int adc_gc, hc_cfg;
-       int timeout;
 
        if (!info->adc_feature.calibration)
                return;
@@ -271,9 +270,7 @@ static void vf610_adc_calibration(struct vf610_adc *info)
        adc_gc = readl(info->regs + VF610_REG_ADC_GC);
        writel(adc_gc | VF610_ADC_CAL, info->regs + VF610_REG_ADC_GC);
 
-       timeout = wait_for_completion_timeout
-                       (&info->completion, VF610_ADC_TIMEOUT);
-       if (timeout == 0)
+       if (!wait_for_completion_timeout(&info->completion, VF610_ADC_TIMEOUT))
                dev_err(info->dev, "Timeout for adc calibration\n");
 
        adc_gc = readl(info->regs + VF610_REG_ADC_GS);