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Commit dcd278b8 authored by Stephen Boyd's avatar Stephen Boyd Committed by Linus Walleij
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pinctrl: msm: Check for ngpios > MAX_NR_GPIO 



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.

Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
Acked-by: default avatarBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 3525f555

drivers/pinctrl/pinctrl-msm.c

+5 −1
Original line number Diff line number Diff line
@@ -897,10 +897,14 @@ 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;