pinctrl: amd: fix error return code in amd_gpio_probe()

platform_get_irq() returns an error code, but the pinctrl-amd 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.

---
 drivers/pinctrl/pinctrl-amd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

index e6779d4..38af1ec 100644
@@ -760,8 +760,8 @@ static int amd_gpio_probe(struct platform_device *pdev)
 
 	irq_base = platform_get_irq(pdev, 0);
 	if (irq_base < 0) {
-		dev_err(&pdev->dev, "Failed to get gpio IRQ.\n");
-		return -EINVAL;
+		dev_err(&pdev->dev, "Failed to get gpio IRQ: %d\n", irq_base);
+		return irq_base;
 	}
 
 	gpio_dev->pdev = pdev;

2.5.0

Patch applied.

Yours,
Linus Walleij