linux-kernel - [PATCH v2] ALSA: x86: fix error return code in hdmi_lpe_audio

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Message-ID: <20170630201841.GA8057@embeddedgus>
Date:   Fri, 30 Jun 2017 15:18:41 -0500
From:   "Gustavo A. R. Silva" <garsilva@...eddedor.com>
To:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <garsilva@...eddedor.com>
Subject: [PATCH v2] ALSA: x86: fix error return code in hdmi_lpe_audio_probe()

platform_get_irq() returns an error code, but the intel_hdmi_audio
driver ignores it and always returns -ENODEV. This is not correct,
and prevents -EPROBE_DEFER from being propagated properly. Also,
notice that platform_get_irq() no longer returns 0 on error.

Print error message and propagate the return value of platform_get_irq
on failure.

Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
---
Changes in v2:
 Fix error in commit message.

 sound/x86/intel_hdmi_audio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c
index c19efc9..a095150 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1758,8 +1758,8 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
 	/* get resources */
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
-		dev_err(&pdev->dev, "Could not get irq resource\n");
-		return -ENODEV;
+		dev_err(&pdev->dev, "Could not get irq resource: %d\n", irq);
+		return irq;
 	}
 
 	res_mmio = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-- 
2.5.0