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mfd: ipaq-micro: Fix error check return value of platform_get_irq()
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
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@ -403,7 +403,7 @@ static int __init micro_probe(struct platform_device *pdev)
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micro_reset_comm(micro);
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irq = platform_get_irq(pdev, 0);
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if (!irq)
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if (irq < 0)
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return -EINVAL;
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ret = devm_request_irq(&pdev->dev, irq, micro_serial_isr,
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IRQF_SHARED, "ipaq-micro",
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