platform_get_irq() returns an error code, but the tegra-devfreq driver ignores it and always returns -ENODEV. 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. Reviewed-by: Chanwoo Choi <cw00.c...@samsung.com> Acked-by: MyungJoo Ham <myungjoo....@samsung.com> Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com> --- Changes in v2: Rewrite commit message. drivers/devfreq/tegra-devfreq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c index 214fff9..ae71215 100644 --- a/drivers/devfreq/tegra-devfreq.c +++ b/drivers/devfreq/tegra-devfreq.c @@ -688,9 +688,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev) } irq = platform_get_irq(pdev, 0); - if (irq <= 0) { - dev_err(&pdev->dev, "Failed to get IRQ\n"); - return -ENODEV; + if (irq < 0) { + dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq); + return irq; } platform_set_drvdata(pdev, tegra); -- 2.5.0
