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slimbus: qcom: Fix IRQ check in qcom_slim_probe

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platform_get_irq() returns non-zero IRQ number on success,
negative error number on failure.
And the doc of platform_get_irq() provides a usage example:

    int irq = platform_get_irq(pdev, 0);
    if (irq < 0)
        return irq;

Fix the check of return value to catch errors correctly.

Fixes: ad7fcbc308 ("slimbus: qcom: Add Qualcomm Slimbus controller driver")
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220510095205.337-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Miaoqian Lin 2022-05-10 10:52:04 +01:00 committed by Greg Kroah-Hartman
parent 80ad54a63a
commit 225baab0ae
1 changed files with 2 additions and 2 deletions
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4
drivers/slimbus/qcom-ctrl.c
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@ -510,9 +510,9 @@ static int qcom_slim_probe(struct platform_device *pdev)
}
ctrl->irq = platform_get_irq(pdev, 0);
if (!ctrl->irq) {
if (ctrl->irq < 0) {
dev_err(&pdev->dev, "no slimbus IRQ\n");
return -ENODEV;
return ctrl->irq;
}
sctrl = &ctrl->ctrl;