From f27b1b2a04dda77454659e0b2572afe9620b55ec Mon Sep 17 00:00:00 2001 From: Tang Bin Date: Mon, 2 Aug 2021 20:09:29 +0800 Subject: iio: adc: fsl-imx25-gcq: adjust irq check to match docs and simplify code For the function of platform_get_irq(), the example in platform.c is * int irq = platform_get_irq(pdev, 0); * if (irq < 0) * return irq; the return value of zero is unnecessary to check, so make the right check and simplify code. Note that platform_get_irq() is documented as never returning 0 so this is a minor optmization rather than a fix. Co-developed-by: Zhang Shengju Signed-off-by: Zhang Shengju Signed-off-by: Tang Bin Link: https://lore.kernel.org/r/20210802120929.33760-1-tangbin@cmss.chinamobile.com Signed-off-by: Jonathan Cameron --- drivers/iio/adc/fsl-imx25-gcq.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'drivers/iio') diff --git a/drivers/iio/adc/fsl-imx25-gcq.c b/drivers/iio/adc/fsl-imx25-gcq.c index 0c771d60541a..329c555b55cc 100644 --- a/drivers/iio/adc/fsl-imx25-gcq.c +++ b/drivers/iio/adc/fsl-imx25-gcq.c @@ -347,14 +347,11 @@ static int mx25_gcq_probe(struct platform_device *pdev) goto err_vref_disable; } - priv->irq = platform_get_irq(pdev, 0); - if (priv->irq <= 0) { - ret = priv->irq; - if (!ret) - ret = -ENXIO; + ret = platform_get_irq(pdev, 0); + if (ret < 0) goto err_clk_unprepare; - } + priv->irq = ret; ret = request_irq(priv->irq, mx25_gcq_irq, 0, pdev->name, priv); if (ret) { dev_err(dev, "Failed requesting IRQ\n"); -- cgit v1.2.3