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usb: dwc3: qcom: add IRQ check
In dwc3_qcom_acpi_register_core(), the driver neglects to check the result
of platform_get_irq()'s call and blithely assigns the negative error codes
to the allocated child device's IRQ resource and then passing this resource
to platform_device_add_resources() and later causing dwc3_otg_get_irq() to
fail anyway. Stop calling platform_device_add_resources() with the invalid
IRQ #s, so that there's less complexity in the IRQ error checking.
Fixes: 2bc02355f8
("usb: dwc3: qcom: Add support for booting with ACPI")
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/45fec3da-1679-5bfe-5d74-219ca3fb28e7@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 4 additions and 0 deletions
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@ -614,6 +614,10 @@ static int dwc3_qcom_acpi_register_core(struct platform_device *pdev)
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qcom->acpi_pdata->dwc3_core_base_size;
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irq = platform_get_irq(pdev_irq, 0);
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if (irq < 0) {
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ret = irq;
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goto out;
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}
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child_res[1].flags = IORESOURCE_IRQ;
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child_res[1].start = child_res[1].end = irq;
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