Messages in this thread Patch in this message | | | From | Denis Arefev <> | Subject | [PATCH] power: supply: Added check for negative values | Date | Tue, 6 Dec 2022 12:17:23 +0300 |
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Variable 'pirq', which may receive negative value in platform_get_irq(). Used as an index in a function regmap_irq_get_virq().
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Denis Arefev <arefev@swemel.ru> --- drivers/power/supply/axp288_fuel_gauge.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/power/supply/axp288_fuel_gauge.c b/drivers/power/supply/axp288_fuel_gauge.c index 148eb8105803..36c7039c99c2 100644 --- a/drivers/power/supply/axp288_fuel_gauge.c +++ b/drivers/power/supply/axp288_fuel_gauge.c @@ -640,6 +640,8 @@ static void fuel_gauge_init_irq(struct axp288_fg_info *info) for (i = 0; i < AXP288_FG_INTR_NUM; i++) { pirq = platform_get_irq(info->pdev, i); + if (pirq < 0) + continue; info->irq[i] = regmap_irq_get_virq(info->regmap_irqc, pirq); if (info->irq[i] < 0) { dev_warn(&info->pdev->dev, -- 2.25.1
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