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thermal: cut the spaces when user sets policy 

Setting policy results in invalid value error.
	% echo "step_wise" > policy
	% echo: write error: Invalid argument

Need clean up of the buffer which "echo" may add based on the arguments, before
comparing aganist list of governor names.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reported-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Tested-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Andy Shevchenko 2013-05-17 11:52:02 +00:00 committed by Zhang Rui
parent 3db46c9396
commit 42a5bf507d
1 changed files with 5 additions and 1 deletions
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6
drivers/thermal/thermal_core.c
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@ -33,6 +33,7 @@
#include <linux/idr.h>
#include <linux/thermal.h>
#include <linux/reboot.h>
#include <linux/string.h>
#include <net/netlink.h>
#include <net/genetlink.h>
@ -713,10 +714,13 @@ policy_store(struct device *dev, struct device_attribute *attr,
int ret = -EINVAL;
struct thermal_zone_device *tz = to_thermal_zone(dev);
struct thermal_governor *gov;
char name[THERMAL_NAME_LENGTH];
snprintf(name, sizeof(name), "%s", buf);
mutex_lock(&thermal_governor_lock);
gov = __find_governor(buf);
gov = __find_governor(strim(name));
if (!gov)
goto exit;