Patch "hwmon: (w83627ehf) Fix underflows seen when writing limit attributes" has been added to the 5.10-stable tree

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This is a note to let you know that I've just added the patch titled

    hwmon: (w83627ehf) Fix underflows seen when writing limit attributes

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     hwmon-w83627ehf-fix-underflows-seen-when-writing-lim.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 6c030224b721da21618eafa02a46e3e8f80837fc
Author: Guenter Roeck <linux@xxxxxxxxxxxx>
Date:   Sat Jul 6 23:51:34 2024 -0700

    hwmon: (w83627ehf) Fix underflows seen when writing limit attributes
    
    [ Upstream commit 5c1de37969b7bc0abcb20b86e91e70caebbd4f89 ]
    
    DIV_ROUND_CLOSEST() after kstrtol() results in an underflow if a large
    negative number such as -9223372036854775808 is provided by the user.
    Fix it by reordering clamp_val() and DIV_ROUND_CLOSEST() operations.
    
    Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 3964ceab2817..acf36862851a 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -897,7 +897,7 @@ store_target_temp(struct device *dev, struct device_attribute *attr,
 	if (err < 0)
 		return err;
 
-	val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
+	val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 127000), 1000);
 
 	mutex_lock(&data->update_lock);
 	data->target_temp[nr] = val;
@@ -922,7 +922,7 @@ store_tolerance(struct device *dev, struct device_attribute *attr,
 		return err;
 
 	/* Limit the temp to 0C - 15C */
-	val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 15);
+	val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 15000), 1000);
 
 	mutex_lock(&data->update_lock);
 	reg = w83627ehf_read_value(data, W83627EHF_REG_TOLERANCE[nr]);




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