linux-kernel - [PATCH 1/3] rtc: sunxi: fix signedness issues

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Date:	Thu, 19 Nov 2015 11:50:08 +0100
From:	LABBE Corentin <clabbe.montjoie@...il.com>
To:	alexandre.belloni@...e-electrons.com, a.zummo@...ertech.it,
	linux-arm-kernel@...ts.infradead.org,
	maxime.ripard@...e-electrons.com, wens@...e.org
Cc:	LABBE Corentin <clabbe.montjoie@...il.com>,
	linux-kernel@...r.kernel.org, rtc-linux@...glegroups.com
Subject: [PATCH 1/3] rtc: sunxi: fix signedness issues

The variable year must be set as unsigned since it is used with
sunxi_rtc_data_year{.min|.max} and as parameter of is_leap_year() which
wait for unsigned int.
Only tm_year is not unsigned, but it is long.
This patch fix also the format of printing of min/max. (must use %u since
they are unsigned)

The parameter to of sunxi_rtc_setaie() must be set to uint since callers
give always uint data.

Signed-off-by: LABBE Corentin <clabbe.montjoie@...il.com>
---
 drivers/rtc/rtc-sunxi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-sunxi.c b/drivers/rtc/rtc-sunxi.c
index 52543ae..b4f35ac 100644
--- a/drivers/rtc/rtc-sunxi.c
+++ b/drivers/rtc/rtc-sunxi.c
@@ -175,7 +175,7 @@ static irqreturn_t sunxi_rtc_alarmirq(int irq, void *id)
 	return IRQ_NONE;
 }
 
-static void sunxi_rtc_setaie(int to, struct sunxi_rtc_dev *chip)
+static void sunxi_rtc_setaie(unsigned int to, struct sunxi_rtc_dev *chip)
 {
 	u32 alrm_val = 0;
 	u32 alrm_irq_val = 0;
@@ -343,7 +343,7 @@ static int sunxi_rtc_settime(struct device *dev, struct rtc_time *rtc_tm)
 	struct sunxi_rtc_dev *chip = dev_get_drvdata(dev);
 	u32 date = 0;
 	u32 time = 0;
-	int year;
+	unsigned int year;
 
 	/*
 	 * the input rtc_tm->tm_year is the offset relative to 1900. We use
@@ -353,8 +353,8 @@ static int sunxi_rtc_settime(struct device *dev, struct rtc_time *rtc_tm)
 
 	year = rtc_tm->tm_year + 1900;
 	if (year < chip->data_year->min || year > chip->data_year->max) {
-		dev_err(dev, "rtc only supports year in range %d - %d\n",
-				chip->data_year->min, chip->data_year->max);
+		dev_err(dev, "rtc only supports year in range %u - %u\n",
+			chip->data_year->min, chip->data_year->max);
 		return -EINVAL;
 	}
 
-- 
2.4.10

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