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reset: sti: Use devm_kcalloc() in syscfg_reset_controller_register()

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* 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.

* Delete the local variable "size" which became unnecessary with
  this refactoring.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Markus Elfring 2017-04-26 09:50:34 +02:00 committed by Philipp Zabel
parent 2ea659a9ef
commit aa248927d8
1 changed files with 2 additions and 4 deletions
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6
drivers/reset/sti/reset-syscfg.c
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@ -145,16 +145,14 @@ static int syscfg_reset_controller_register(struct device *dev,
const struct syscfg_reset_controller_data *data) const struct syscfg_reset_controller_data *data)
{ {
struct syscfg_reset_controller *rc; struct syscfg_reset_controller *rc;
size_t size;
int i, err; int i, err;
rc = devm_kzalloc(dev, sizeof(*rc), GFP_KERNEL); rc = devm_kzalloc(dev, sizeof(*rc), GFP_KERNEL);
if (!rc) if (!rc)
return -ENOMEM; return -ENOMEM;
size = sizeof(struct syscfg_reset_channel) * data->nr_channels; rc->channels = devm_kcalloc(dev, data->nr_channels,
sizeof(*rc->channels), GFP_KERNEL);
rc->channels = devm_kzalloc(dev, size, GFP_KERNEL);
if (!rc->channels) if (!rc->channels)
return -ENOMEM; return -ENOMEM;