[PATCHv4 48/48] thermal: sysfs: use kcalloc() instead of kzalloc()

[Eduardo Valentin]

Simplify size computation by using kcalloc() for
allocating memory for arrays.

Cc: Zhang Rui <rui.zh...@intel.com>
Cc: linux...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <edubez...@gmail.com>
---
 drivers/thermal/thermal_sysfs.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index ca4b83a..4136b71 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -505,22 +505,25 @@ 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;
 
-       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);
@@ -528,7 +531,7 @@ 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);
-- 
2.1.4