From 00cab884d0b5b9efb0854457978334eeccc8a0f7 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 18 Jul 2014 07:31:18 -0700
Subject: [PATCH] hwmon: (smsc47m192) Fix temperature limit and vrm write
 operations

commit 043572d5444116b9d9ad8ae763cf069e7accbc30 upstream.

Temperature limit clamps are applied after converting the temperature
from milli-degrees C to degrees C, so either the clamp limit needs
to be specified in degrees C, not milli-degrees C, or clamping must
happen before converting to degrees C. Use the latter method to avoid
overflows.

vrm is an u8, so the written value needs to be limited to [0, 255].

Cc: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
[bwh: Backported to 3.2:
 - Driver is not using clamp_val(); keep using SENSORS_LIMIT() for consistency
 - Driver is not using kstrtoul(); make the minimum change to set_vrm() so
   we can validate the value before assigning]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
Reading git-format-patch failed