Messages in this thread Patch in this message | | | From | Arvind Yadav <> | Subject | [PATCH 1/3 v2] mfd: ipaq-micro: Fix platform_get_irq's error checking | Date | Sat, 18 Nov 2017 14:20:47 +0530 |
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The platform_get_irq() function returns negative if an error occurs. zero or positive number on success. platform_get_irq() error checking for zero is not correct.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> --- changes in v2 : Add failure case '<= 0' instead of '< 0'. If IRQ0 is not valid.
drivers/mfd/ipaq-micro.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mfd/ipaq-micro.c b/drivers/mfd/ipaq-micro.c index cd762d0..ea729db 100644 --- a/drivers/mfd/ipaq-micro.c +++ b/drivers/mfd/ipaq-micro.c @@ -410,8 +410,8 @@ static int __init micro_probe(struct platform_device *pdev) micro_reset_comm(micro); irq = platform_get_irq(pdev, 0); - if (!irq) - return -EINVAL; + if (irq <= 0) + return irq; ret = devm_request_irq(&pdev->dev, irq, micro_serial_isr, IRQF_SHARED, "ipaq-micro", micro); -- 2.7.4
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