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authorGustavo A. R. Silva <gustavo@embeddedor.com>2017-08-08 07:45:02 +0300
committerMark Brown <broonie@kernel.org>2017-08-08 13:36:07 +0300
commit9a6b94796ae6feaf275ec6200e9b2964db208182 (patch)
tree15be0a96b480bf376add9e5138d176c454d55f5e /drivers/spi/spi-xlp.c
parent5771a8c08880cdca3bfb4a3fc6d309d6bba20877 (diff)
downloadlinux-9a6b94796ae6feaf275ec6200e9b2964db208182.tar.xz
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 <gustavo@embeddedor.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-xlp.c')
-rw-r--r--drivers/spi/spi-xlp.c4
1 files 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);