Fail the probe and print a warning if SoC specific drivers have
more GPIOs than there can be accounted for in the static bitmaps.
This should avoid silent corruption/failures in the future.
Cc: Bjorn Andersson <bjorn.anders...@sonymobile.com>
Signed-off-by: Stephen Boyd <sb...@codeaurora.org>
---
drivers/pinctrl/pinctrl-msm.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-msm.c b/drivers/pinctrl/pinctrl-msm.c
index ac7223dab4a3..19b0de89dc07 100644
--- a/drivers/pinctrl/pinctrl-msm.c
+++ b/drivers/pinctrl/pinctrl-msm.c
@@ -882,10 +882,14 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
int ret;
int i;
int r;
+ unsigned ngpio = pctrl->soc->ngpios;
+
+ if (WARN_ON(ngpio > MAX_NR_GPIO))
+ return -EINVAL;
chip = &pctrl->chip;
chip->base = 0;
- chip->ngpio = pctrl->soc->ngpios;
+ chip->ngpio = ngpio;
chip->label = dev_name(pctrl->dev);
chip->dev = pctrl->dev;
chip->owner = THIS_MODULE;
--
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