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mfd: ipaq-micro: Fix error check return value of platform_get_irq()

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[ Upstream commit 3b49ae380ce1a3054e0c505dd9a356b82a5b48e8 ]

platform_get_irq() return negative value on failure, so null check of
irq is incorrect. Fix it by comparing whether it is less than zero.

Fixes: dcc21cc09e ("mfd: Add driver for Atmel Microcontroller on iPaq h3xxx")
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220412085305.2533030-1-lv.ruyi@zte.com.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lv Ruyi
2022-04-12 08:53:05 +00:00
committed by Greg Kroah-Hartman
parent 82c6c8a66c
commit 17d9d7d264
1 changed files with 1 additions and 1 deletions
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2
drivers/mfd/ipaq-micro.c
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@@ -403,7 +403,7 @@ static int __init micro_probe(struct platform_device *pdev)
micro_reset_comm(micro); micro_reset_comm(micro);
irq = platform_get_irq(pdev, 0); irq = platform_get_irq(pdev, 0);
if (!irq) if (irq < 0)
return -EINVAL; return -EINVAL;
ret = devm_request_irq(&pdev->dev, irq, micro_serial_isr, ret = devm_request_irq(&pdev->dev, irq, micro_serial_isr,
IRQF_SHARED, "ipaq-micro", IRQF_SHARED, "ipaq-micro",