ASoC: spear: fix error return code in spdif_in_probe()

platform_get_irq() returns an error code, but the spdif_in 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 error message and propagate the return value of platform_get_irq on failure.

---
 sound/soc/spear/spdif_in.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

index 977a078..7f32527 100644
@@ -223,8 +223,10 @@ static int spdif_in_probe(struct platform_device *pdev)
 
 	host->io_base = io_base;
 	host->irq = platform_get_irq(pdev, 0);
-	if (host->irq < 0)
-		return -EINVAL;
+	if (host->irq < 0) {
+		dev_warn(&pdev->dev, "failed to get IRQ: %d\n", host->irq);
+		return host->irq;
+	}
 
 	host->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(host->clk))

2.5.0

The patch

ASoC: spear: fix error return code in spdif_in_probe()

has been applied to the asoc tree at

git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks,
Mark

From: "Gustavo A. R. Silva" <[email protected]>
Date: Fri, 30 Jun 2017 15:43:50 -0500
Subject: [PATCH] ASoC: spear: fix error return code in spdif_in_probe()

platform_get_irq() returns an error code, but the spdif_in 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 error message and propagate the return value of platform_get_irq on failure.

---
 sound/soc/spear/spdif_in.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

index 977a078eb92f..7f32527fc3c8 100644
@@ -223,8 +223,10 @@ static int spdif_in_probe(struct platform_device *pdev)
 
 	host->io_base = io_base;
 	host->irq = platform_get_irq(pdev, 0);
-	if (host->irq < 0)
-		return -EINVAL;
+	if (host->irq < 0) {
+		dev_warn(&pdev->dev, "failed to get IRQ: %d\n", host->irq);
+		return host->irq;
+	}
 
 	host->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(host->clk))

2.13.2