extcon: arizona: Use devm_kcalloc() in arizona_extcon_get_micd_configs()

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "devm_kcalloc".

* Replace the specification of a data structure by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Markus Elfring 2017-04-23 22:44:19 +02:00 committed by Chanwoo Choi
parent 826a47e978
commit cf5459a9e2

View File

@ -1271,9 +1271,7 @@ static int arizona_extcon_get_micd_configs(struct device *dev,
goto out;
nconfs /= entries_per_config;
micd_configs = devm_kzalloc(dev,
nconfs * sizeof(struct arizona_micd_range),
micd_configs = devm_kcalloc(dev, nconfs, sizeof(*micd_configs),
GFP_KERNEL);
if (!micd_configs) {
ret = -ENOMEM;