From: Leonid Maksymchuk leonmaxx@gmail.com
[ Upstream commit edeee341fd6c1099de357c517af215bee2c6f766 ]
Function fan_boost_mode_store returns 0 if store is successful, this leads to infinite loop after any write to it's sysfs entry:
# echo 0 >/sys/devices/platform/asus-nb-wmi/fan_boost_mode
This command never ends, one CPU core is at 100% utilization. This patch fixes this by returning size of written data.
Fixes: b096f626a682 ("platform/x86: asus-wmi: Switch fan boost mode") Signed-off-by: Leonid Maksymchuk leonmaxx@gmail.com Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/asus-wmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 982f0cc8270ce..977b813cc0fa9 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -1712,7 +1712,7 @@ static ssize_t fan_boost_mode_store(struct device *dev, asus->fan_boost_mode = new_mode; fan_boost_mode_write(asus);
- return result; + return count; }
// Fan boost mode: 0 - normal, 1 - overboost, 2 - silent