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thermal: split hwmon lookup to a separate function

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We'll soon need to reuse it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rene Herman <rene.herman@gmail.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Jean Delvare 2011-07-28 13:48:41 -07:00 committed by Len Brown
parent ab92402af0
commit 0d97d7a494
1 changed files with 21 additions and 8 deletions
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23
drivers/thermal/thermal_sys.c
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@ -469,6 +469,22 @@ temp_crit_show(struct device *dev, struct device_attribute *attr,
} }
static struct thermal_hwmon_device *
thermal_hwmon_lookup_by_type(const struct thermal_zone_device *tz)
{
struct thermal_hwmon_device *hwmon;
mutex_lock(&thermal_list_lock);
list_for_each_entry(hwmon, &thermal_hwmon_list, node)
if (!strcmp(hwmon->type, tz->type)) {
mutex_unlock(&thermal_list_lock);
return hwmon;
}
mutex_unlock(&thermal_list_lock);
return NULL;
}
static int static int
thermal_add_hwmon_sysfs(struct thermal_zone_device *tz) thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
{ {
@ -476,14 +492,11 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
int new_hwmon_device = 1; int new_hwmon_device = 1;
int result; int result;
mutex_lock(&thermal_list_lock); hwmon = thermal_hwmon_lookup_by_type(tz);
list_for_each_entry(hwmon, &thermal_hwmon_list, node) if (hwmon) {
if (!strcmp(hwmon->type, tz->type)) {
new_hwmon_device = 0; new_hwmon_device = 0;
mutex_unlock(&thermal_list_lock);
goto register_sys_interface; goto register_sys_interface;
} }
mutex_unlock(&thermal_list_lock);
hwmon = kzalloc(sizeof(struct thermal_hwmon_device), GFP_KERNEL); hwmon = kzalloc(sizeof(struct thermal_hwmon_device), GFP_KERNEL);
if (!hwmon) if (!hwmon)