therm_adt746x: Fix signed/unsigned confusion

As suggested, this is used for signed rather than unsigned

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 82607add69a9..c0621d50c8a0 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -498,8 +498,8 @@ static ssize_t store_##name(struct device *dev, struct device_attribute *attr, c
 #define BUILD_STORE_FUNC_INT(name, data)                        \
 static ssize_t store_##name(struct device *dev, struct device_attribute *attr, const char *buf, size_t n) \
 {                                                               \
-        u32 val;                                                \
-        val = simple_strtoul(buf, NULL, 10);                    \
+        int val;                                                \
+        val = simple_strtol(buf, NULL, 10);                     \
         if (val < 0 || val > 255)                               \
                 return -EINVAL;                                 \
         printk(KERN_INFO "Setting specified fan speed to %d\n", val);   \