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(parent: 48849ef) | patch
hwmon: Prevent some divide by zeros in FAN_TO_REG()
authorDan Carpenter <dan.carpenter@oracle.com>
Thu, 12 Dec 2013 07:05:33 +0000 (08:05 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 20 Dec 2013 15:48:52 +0000 (07:48 -0800)
commite6ddcefc7e3694fdf85703b366d35b4bdb1b89fd
tree39f02df42cd639f1a18cb37ba3385459d106a482tree | snapshot
parent48849efc2e3c58d170e32d081f83f6c070dfd0a3commit | diff
hwmon: Prevent some divide by zeros in FAN_TO_REG()

commit 3806b45ba4655147a011df03242cc197ab986c43 upstream.

The "rpm * div" operations can overflow here, so this patch adds an
upper limit to rpm to prevent that.  Jean Delvare helped me with this
patch.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Roger Lucas <vt8231@hiddenengine.co.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/hwmon/lm78.c diff | blob | history
drivers/hwmon/sis5595.c diff | blob | history
drivers/hwmon/vt8231.c diff | blob | history
Domain: System / Uncategorized;