From: Doug Anderson <dianders@chromium.org>
Date: Thu, 13 Feb 2014 22:39:34 +0000 (-0800)
Subject: hwmon: (ntc_thermistor) Avoid math overflow
X-Git-Tag: v3.14-rc3~25^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3d89c468ceebbcf9423d1a3d66c5bf91f569570;p=pandora-kernel.git

hwmon: (ntc_thermistor) Avoid math overflow

The ntc thermistor code was doing math whose temporary result might
have overflowed 32-bits.  We need some casts in there to make it safe.

In one example I found:
- pullup_uV: 1800000
- result of iio_read_channel_raw: 3226
- 1800000 * 3226 => 0x15a1cbc80

Signed-off-by: Doug Anderson <dianders@chromium.org>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---

Reading git-diff-tree failed