const struct pin_desc *desc;
desc = pin_desc_get(pctldev, pin);
- if (desc == NULL) {
+ if (!desc) {
dev_err(pctldev->dev, "failed to get pin(%d) name\n",
pin);
return NULL;
pindesc = radix_tree_lookup(&pctldev->pin_desc_tree,
pins[i].number);
- if (pindesc != NULL) {
+ if (pindesc) {
radix_tree_delete(&pctldev->pin_desc_tree,
pins[i].number);
if (pindesc->dynamic_name)
struct pin_desc *pindesc;
pindesc = pin_desc_get(pctldev, pin->number);
- if (pindesc != NULL) {
+ if (pindesc) {
dev_err(pctldev->dev, "pin %d already registered\n",
pin->number);
return -EINVAL;
pindesc->name = pin->name;
} else {
pindesc->name = kasprintf(GFP_KERNEL, "PIN%u", pin->number);
- if (pindesc->name == NULL) {
+ if (!pindesc->name) {
kfree(pindesc);
return -ENOMEM;
}
struct pinctrl_gpio_range *range;
range = pinctrl_match_gpio_range(pctldev, gpio);
- if (range != NULL) {
+ if (range) {
*outdev = pctldev;
*outrange = range;
mutex_unlock(&pinctrldev_list_mutex);
else
setting->pctldev =
get_pinctrl_dev_from_devname(map->ctrl_dev_name);
- if (setting->pctldev == NULL) {
+ if (!setting->pctldev) {
kfree(setting);
/* Do not defer probing of hogs (circular loop) */
if (!strcmp(map->ctrl_dev_name, map->dev_name))
* return another pointer to it.
*/
p = find_pinctrl(dev);
- if (p != NULL) {
+ if (p) {
dev_dbg(dev, "obtain a copy of previously claimed pinctrl\n");
kref_get(&p->users);
return p;
pin = pctldev->desc->pins[i].number;
desc = pin_desc_get(pctldev, pin);
/* Pin space may be sparse */
- if (desc == NULL)
+ if (!desc)
continue;
seq_printf(s, "pin %d (%s) ", pin, desc->name);
{
struct pinctrl_gpio_range *range, *n;
- if (pctldev == NULL)
+ if (!pctldev)
return;
mutex_lock(&pctldev->mutex);