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PCI: dra7xx: Propagate platform_get_irq() errors in dra7xx_pcie_probe()

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platform_get_irq() returns an error code, but the pci-dra7xx driver ignores
it and always returns -EINVAL. This is not correct and prevents
-EPROBE_DEFER from being propagated properly.

Print and propagate the return value of platform_get_irq() on failure.

This issue was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Gustavo A. R. Silva 2017-08-09 11:16:03 -05:00 committed by Bjorn Helgaas
parent 61534d1a4c
commit a0d21ba120
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/dwc/pci-dra7xx.c
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@ -616,8 +616,8 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0); irq = platform_get_irq(pdev, 0);
if (irq < 0) { if (irq < 0) {
dev_err(dev, "missing IRQ resource\n"); dev_err(dev, "missing IRQ resource: %d\n", irq);
return -EINVAL; return irq;
} }
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ti_conf"); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ti_conf");