diff options
| author | Eduardo Valentin <edubezval@gmail.com> | 2016-11-07 21:09:26 -0800 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2016-11-23 10:06:12 +0800 |
| commit | b819dc9ef064430118634160330eaa93708aad28 (patch) | |
| tree | 950b989f8f92b5899e0878d5bb72fa52801dee14 /drivers/thermal/thermal_sysfs.c | |
| parent | 95e3ed1513494aa2d0aaba7a99fb7aa8b51dcfc8 (diff) | |
thermal: sysfs: use kcalloc() instead of kzalloc()
Simplify size computation by using kcalloc() for
allocating memory for arrays.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/thermal/thermal_sysfs.c')
| -rw-r--r-- | drivers/thermal/thermal_sysfs.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c index 4807015c26de..a694de907a26 100644 --- a/drivers/thermal/thermal_sysfs.c +++ b/drivers/thermal/thermal_sysfs.c @@ -511,7 +511,6 @@ static const struct attribute_group *thermal_zone_attribute_groups[] = { */ static int create_trip_attrs(struct thermal_zone_device *tz, int mask) { - int size = sizeof(struct thermal_attr) * tz->trips; struct attribute **attrs; int indx; @@ -519,18 +518,22 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask) if (tz->trips <= 0) return -EINVAL; - tz->trip_type_attrs = kzalloc(size, GFP_KERNEL); + tz->trip_type_attrs = kcalloc(tz->trips, sizeof(*tz->trip_type_attrs), + GFP_KERNEL); if (!tz->trip_type_attrs) return -ENOMEM; - tz->trip_temp_attrs = kzalloc(size, GFP_KERNEL); + tz->trip_temp_attrs = kcalloc(tz->trips, sizeof(*tz->trip_temp_attrs), + GFP_KERNEL); if (!tz->trip_temp_attrs) { kfree(tz->trip_type_attrs); return -ENOMEM; } if (tz->ops->get_trip_hyst) { - tz->trip_hyst_attrs = kzalloc(size, GFP_KERNEL); + tz->trip_hyst_attrs = kcalloc(tz->trips, + sizeof(*tz->trip_hyst_attrs), + GFP_KERNEL); if (!tz->trip_hyst_attrs) { kfree(tz->trip_type_attrs); kfree(tz->trip_temp_attrs); @@ -538,7 +541,7 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask) } } - attrs = kzalloc(sizeof(*attrs) * tz->trips * 3 + 1, GFP_KERNEL); + attrs = kcalloc(tz->trips * 3 + 1, sizeof(*attrs), GFP_KERNEL); if (!attrs) { kfree(tz->trip_type_attrs); kfree(tz->trip_temp_attrs); |