hwmon: (lm78) Fix overflow problems seen when writing large temperature limits
authorGuenter Roeck <linux@roeck-us.net>
Wed, 30 Jul 2014 03:48:59 +0000 (20:48 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 5 Sep 2014 23:34:14 +0000 (16:34 -0700)
commitd9ef104e7990ad0cbe3314fa4eca192a2f8ca316
treeb481bd37ef72eeef95df15d44f7cbf6191792972
parentb0f4549190f3d46acfb0d192802aa1d21410d012
hwmon: (lm78) Fix overflow problems seen when writing large temperature limits

commit 1074d683a51f1aded3562add9ef313e75d557327 upstream.

On platforms with sizeof(int) < sizeof(long), writing a temperature
limit larger than MAXINT will result in unpredictable limit values
written to the chip. Avoid auto-conversion from long to int to fix
the problem.

Cc: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/hwmon/lm78.c