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spi/bcm63xx: fix error return code in bcm63xx_spi_probe() 

platform_get_irq() returns an error code, but the spi-bcm63xx driver
ignores it and always returns -ENXIO. 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>
This commit is contained in:
Gustavo A. R. Silva 2017-08-07 23:52:34 -05:00 committed by Mark Brown
parent 5771a8c088
commit ba8afe9472
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi-bcm63xx.c
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@ -530,8 +530,8 @@ static int bcm63xx_spi_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, "no irq\n"); dev_err(dev, "no irq: %d\n", irq);
return -ENXIO; return irq;
} }
clk = devm_clk_get(dev, "spi"); clk = devm_clk_get(dev, "spi");