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Message-ID: <20210524120835.1580420-1-liushixin2@huawei.com>
Date:   Mon, 24 May 2021 20:08:35 +0800
From:   Liu Shixin <liushixin2@...wei.com>
To:     Colin Leroy <colin@...ino.net>
CC:     <linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
        "Liu Shixin" <liushixin2@...wei.com>
Subject: [PATCH -next] macintosh/therm_adt746x: Replaced simple_strtol() with kstrtoint()

The simple_strtol() function is deprecated in some situation since
it does not check for the range overflow. Use kstrtoint() instead.

Signed-off-by: Liu Shixin <liushixin2@...wei.com>
---
 drivers/macintosh/therm_adt746x.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 7e218437730c..0d7ef55126ce 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -352,7 +352,8 @@ static ssize_t store_##name(struct device *dev, struct device_attribute *attr, c
 	struct thermostat *th = dev_get_drvdata(dev);		\
 	int val;						\
 	int i;							\
-	val = simple_strtol(buf, NULL, 10);			\
+	if (unlikely(kstrtoint(buf, 10, &val))			\
+		return -EINVAL;					\
 	printk(KERN_INFO "Adjusting limits by %d degrees\n", val);	\
 	limit_adjust = val;					\
 	for (i=0; i < 3; i++)					\
@@ -364,7 +365,8 @@ static ssize_t store_##name(struct device *dev, struct device_attribute *attr, c
 static ssize_t store_##name(struct device *dev, struct device_attribute *attr, const char *buf, size_t n) \
 {								\
 	int val;						\
-	val = simple_strtol(buf, NULL, 10);			\
+	if (unlikely(kstrtoint(buf, 10, &val))			\
+		return -EINVAL;					\
 	if (val < 0 || val > 255)				\
 		return -EINVAL;					\
 	printk(KERN_INFO "Setting specified fan speed to %d\n", val);	\
-- 
2.18.0.huawei.25

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