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staging: mt7621-pinctrl: make use of pinctrl_utils_reserve_map 

Function rt2880_pinctrl_dt_node_to_map was using 'kzalloc' to
reserve map memory. There is a 'pinctrl_utils_reserve_map' to
do this function. Just use it.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergio Paracuellos 2018-06-28 21:03:04 +02:00 committed by Greg Kroah-Hartman
parent 4a1cf86bce
commit 62b6215c11
1 changed files with 9 additions and 3 deletions
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12
drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
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@ -113,7 +113,10 @@ static int rt2880_pinctrl_dt_node_to_map(struct pinctrl_dev *pctrldev,
struct pinctrl_map **map,
unsigned int *num_maps)
{
struct rt2880_priv *p = pinctrl_dev_get_drvdata(pctrldev);
int ret;
int max_maps = 0;
unsigned int reserved_maps = 0;
struct pinctrl_map *tmp;
struct device_node *np;
@ -127,9 +130,12 @@ static int rt2880_pinctrl_dt_node_to_map(struct pinctrl_dev *pctrldev,
if (!max_maps)
return max_maps;
*map = kcalloc(max_maps, sizeof(struct pinctrl_map), GFP_KERNEL);
if (!*map)
return -ENOMEM;
ret = pinctrl_utils_reserve_map(pctrldev, map, &reserved_maps,
num_maps, max_maps);
if (ret) {
dev_err(p->dev, "can't reserve map: %d\n", ret);
return ret;
}
tmp = *map;