linux-kernel - [PATCH v2] staging: iio: trigger: iio-trig-periodic-rtc: Change frequency type to unsigned int

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Date:	Sun,  8 Feb 2015 19:22:54 +0100
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Jonathan Cameron <jic23@...nel.org>,
	Hartmut Knaack <knaack.h@....de>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Meerwald <pmeerw@...erw.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Joel Porquet <joel@...quet.org>,
	Darshana Padmadas <darshanapadmadas@...il.com>,
	Catalina Mocanu <catalina.mocanu@...il.com>,
	Wolfram Sang <wsa@...-dreams.de>, linux-iio@...r.kernel.org,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] 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@...ctrumdigital.se>
---
 drivers/staging/iio/trigger/iio-trig-periodic-rtc.c |   12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

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
--- 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;
 
-- 
1.7.10.4

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