This is a note to let you know that I've just added the patch titled
hwmon: (gpio-fan) Prevent overflow problem when writing large limits
to the 3.14-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-gpio-fan-prevent-overflow-problem-when-writing-large-limits.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2565fb05d1e9fc0831f7b1c083bcfcb1cba1f020 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@xxxxxxxxxx>
Date: Sat, 2 Aug 2014 13:36:38 +0800
Subject: hwmon: (gpio-fan) Prevent overflow problem when writing large limits
From: Axel Lin <axel.lin@xxxxxxxxxx>
commit 2565fb05d1e9fc0831f7b1c083bcfcb1cba1f020 upstream.
On platforms with sizeof(int) < sizeof(unsigned long), writing a rpm value
larger than MAXINT will result in unpredictable limit values written to the
chip. Avoid auto-conversion from unsigned long to int to fix the problem.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hwmon/gpio-fan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -173,7 +173,7 @@ static int get_fan_speed_index(struct gp
return -ENODEV;
}
-static int rpm_to_speed_index(struct gpio_fan_data *fan_data, int rpm)
+static int rpm_to_speed_index(struct gpio_fan_data *fan_data, unsigned long rpm)
{
struct gpio_fan_speed *speed = fan_data->speed;
int i;
Patches currently in stable-queue which might be from axel.lin@xxxxxxxxxx are
queue-3.14/hwmon-sis5595-prevent-overflow-problem-when-writing-large-limits.patch
queue-3.14/hwmon-ads1015-fix-off-by-one-for-valid-channel-index-checking.patch
queue-3.14/hwmon-lm78-fix-overflow-problems-seen-when-writing-large-temperature-limits.patch
queue-3.14/hwmon-gpio-fan-prevent-overflow-problem-when-writing-large-limits.patch
queue-3.14/hwmon-amc6821-fix-possible-race-condition-bug.patch
queue-3.14/hwmon-ads1015-fix-out-of-bounds-array-access.patch
queue-3.14/hwmon-dme1737-prevent-overflow-problem-when-writing-large-limits.patch
queue-3.14/hwmon-lm85-fix-various-errors-on-attribute-writes.patch
--
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