4.4-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit ba8afe94723e9ba665aee9cca649fb2c80f7304c ]
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/?i...
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-bcm63xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index bf9a610e5b89..f14500910bc2 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -496,8 +496,8 @@ static int bcm63xx_spi_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(dev, "no irq\n"); - return -ENXIO; + dev_err(dev, "no irq: %d\n", irq); + return irq; }
clk = devm_clk_get(dev, "spi");