The property #pinctrl-cells can either be 1 or 2:
- if #pinctrl-cells = <1>, then pinctrl_spec.args_count = 2
- if #pinctrl-cells = <2>, then pinctrl_spec.args_count = 3
All other values of pinctrl_spec.args_count are incorrect. This fix
checks the upper bound instead of just the lower bound.
Fixes: a13395418888 ("pinctrl: single: parse #pinctrl-cells = 2")
Reported-by: Trent Piepho <[email protected]>
Link: https://lore.kernel.org/linux-omap/[email protected]/
Signed-off-by: Drew Fustini <[email protected]>
---
v2 change:
- correct the description as I had previously been mistakenly using the
term #pinctrl-cells instead of pinctrl_spec.args_count
drivers/pinctrl/pinctrl-single.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index efe41abc5d47..5cbf0e55087c 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1014,7 +1014,7 @@ static int pcs_parse_one_pinctrl_entry(struct pcs_device
*pcs,
if (res)
return res;
- if (pinctrl_spec.args_count < 2) {
+ if (pinctrl_spec.args_count < 2 || pinctrl_spec.args_count > 3)
{
dev_err(pcs->dev, "invalid args_count for spec: %i\n",
pinctrl_spec.args_count);
break;
--
2.25.1
