staging: iio: trigger: iio-trig-periodic-rtc: Change frequency type to unsigned int

Change struct iio_prtc_trigger_info frequency
type from int to unsigned int.
Since it is always treated as such in the driver
so they type should probably reflect this.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
index a24caf7..89df1d3 100644 (file)
--- a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
+++ b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
@@ -24,7 +24,7 @@ static DEFINE_MUTEX(iio_prtc_trigger_list_lock);
 
 struct iio_prtc_trigger_info {
        struct rtc_device *rtc;
-       int frequency;
+       unsigned int frequency;
        struct rtc_task task;
        bool state;
 };
@@ -36,7 +36,7 @@ static int iio_trig_periodic_rtc_set_state(struct iio_trigger *trig, bool state)
 
        if (trig_info->frequency == 0 && state)
                return -EINVAL;
-       dev_dbg(&trig_info->rtc->dev, "trigger frequency is %d\n",
+       dev_dbg(&trig_info->rtc->dev, "trigger frequency is %u\n",
                        trig_info->frequency);
        ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, state);
        if (ret == 0)
@@ -62,10 +62,10 @@ static ssize_t iio_trig_periodic_write_freq(struct device *dev,
 {
        struct iio_trigger *trig = to_iio_trigger(dev);
        struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig);
-       int val;
+       unsigned int val;
        int ret;
 
-       ret = kstrtoint(buf, 10, &val);
+       ret = kstrtouint(buf, 10, &val);
        if (ret)
                goto error_ret;
 
@@ -74,10 +74,8 @@ static ssize_t iio_trig_periodic_write_freq(struct device *dev,
                if (ret == 0 && trig_info->state && trig_info->frequency == 0)
                        ret = rtc_irq_set_state(trig_info->rtc,
                                                &trig_info->task, 1);
-       } else if (val == 0) {
-               ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, 0);
        } else
-               ret = -EINVAL;
+               ret = rtc_irq_set_state(trig_info->rtc, &trig_info->task, 0);
        if (ret)
                goto error_ret;