diff options
Diffstat (limited to 'drivers/pinctrl/core.c')
| -rw-r--r-- | drivers/pinctrl/core.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index c0fe6091566a..e09474ecde23 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -468,6 +468,9 @@ int pinctrl_get_group_pins(struct pinctrl_dev *pctldev, const char *pin_group, const struct pinctrl_ops *pctlops = pctldev->desc->pctlops; int gs; + if (!pctlops->get_group_pins) + return -EINVAL; + gs = pinctrl_get_group_selector(pctldev, pin_group); if (gs < 0) return gs; @@ -1362,15 +1365,16 @@ static int pinctrl_groups_show(struct seq_file *s, void *what) seq_puts(s, "registered pin groups:\n"); while (selector < ngroups) { - const unsigned *pins; - unsigned num_pins; + const unsigned *pins = NULL; + unsigned num_pins = 0; const char *gname = ops->get_group_name(pctldev, selector); const char *pname; - int ret; + int ret = 0; int i; - ret = ops->get_group_pins(pctldev, selector, - &pins, &num_pins); + if (ops->get_group_pins) + ret = ops->get_group_pins(pctldev, selector, + &pins, &num_pins); if (ret) seq_printf(s, "%s [ERROR GETTING PINS]\n", gname); @@ -1694,8 +1698,7 @@ static int pinctrl_check_ops(struct pinctrl_dev *pctldev) if (!ops || !ops->get_groups_count || - !ops->get_group_name || - !ops->get_group_pins) + !ops->get_group_name) return -EINVAL; if (ops->dt_node_to_map && !ops->dt_free_map) |