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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: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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1 changed files with 5 additions and 1 deletions
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@ -897,10 +897,14 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
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int ret;
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int i;
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int r;
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unsigned ngpio = pctrl->soc->ngpios;
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if (WARN_ON(ngpio > MAX_NR_GPIO))
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return -EINVAL;
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chip = &pctrl->chip;
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chip->base = 0;
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chip->ngpio = pctrl->soc->ngpios;
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chip->ngpio = ngpio;
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chip->label = dev_name(pctrl->dev);
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chip->dev = pctrl->dev;
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chip->owner = THIS_MODULE;
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