From 9a6b94796ae6feaf275ec6200e9b2964db208182 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Mon, 7 Aug 2017 23:45:02 -0500 Subject: [PATCH] spi: xlp: fix error return code in xlp_spi_probe() platform_get_irq() returns an error code, but the spi-xlp driver ignores it and always returns -EINVAL. This is not correct and, prevents -EPROBE_DEFER from being propagated properly. Notice that platform_get_irq() no longer returns 0 on error: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af 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 Signed-off-by: Mark Brown --- drivers/spi/spi-xlp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-xlp.c b/drivers/spi/spi-xlp.c index 80cb4d6af892..74a01b09a8a5 100644 --- a/drivers/spi/spi-xlp.c +++ b/drivers/spi/spi-xlp.c @@ -393,8 +393,8 @@ static int xlp_spi_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(&pdev->dev, "no IRQ resource found\n"); - return -EINVAL; + dev_err(&pdev->dev, "no IRQ resource found: %d\n", irq); + return irq; } err = devm_request_irq(&pdev->dev, irq, xlp_spi_interrupt, 0, pdev->name, xspi);