thermal: thermal_core: policy store via sysfs is broken

When function __find_governor() gets called from policy_store(), the argument 'buf' has a '\n' character at the end. This causes strnicmp() mismatches all the time. Consequently, policy_store() will always return -EINVAL, and hence the policy store via sysfs will always fail even when users store a correct policy name.

Fix the problem by using strncasecmp() for policy name matching in __find_governor().

Signed-off-by Shawn Guo <[email protected]>

---
 drivers/thermal/thermal_core.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

drivers/thermal/thermal_core.c +3 -2

index d755440..6ba869f 100644
@@ -57,9 +57,10 @@ static struct thermal_governor *__find_governor(const char *name)
 {
 	struct thermal_governor *pos;
 
-	list_for_each_entry(pos, &thermal_governor_list, governor_list)
-		if (!strnicmp(name, pos->name, THERMAL_NAME_LENGTH))
+	list_for_each_entry(pos, &thermal_governor_list, governor_list) {
+		if (!strncasecmp(name, pos->name, strlen(pos->name)))
 			return pos;
+	}
 
 	return NULL;
 }