linux-kernel - [PATCH] ASoC: mediatek: Fix error handling

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Date:   Wed,  6 May 2020 22:30:09 +0800
From:   Tang Bin <tangbin@...s.chinamobile.com>
To:     broonie@...nel.org, lgirdwood@...il.com, perex@...ex.cz,
        matthias.bgg@...il.com
Cc:     alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Tang Bin <tangbin@...s.chinamobile.com>,
        Zhang Shengju <zhangshengju@...s.chinamobile.com>
Subject: [PATCH] ASoC: mediatek: Fix error handling

If the function platform_get_irq() failed, the negative value
returned will not be detected here. So fix error handling in
mt6797_afe_pcm_dev_probe(). And when get irq failed, the function
platform_get_irq() logs an error message, so remove redundant
message here.

Signed-off-by: Zhang Shengju <zhangshengju@...s.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@...s.chinamobile.com>
---
 sound/soc/mediatek/mt6797/mt6797-afe-pcm.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/sound/soc/mediatek/mt6797/mt6797-afe-pcm.c b/sound/soc/mediatek/mt6797/mt6797-afe-pcm.c
index 378bfc16e..a621dcf91 100644
--- a/sound/soc/mediatek/mt6797/mt6797-afe-pcm.c
+++ b/sound/soc/mediatek/mt6797/mt6797-afe-pcm.c
@@ -807,10 +807,9 @@ static int mt6797_afe_pcm_dev_probe(struct platform_device *pdev)
 
 	/* request irq */
 	irq_id = platform_get_irq(pdev, 0);
-	if (!irq_id) {
-		dev_err(dev, "%pOFn no irq found\n", dev->of_node);
-		return -ENXIO;
-	}
+	if (irq_id < 0)
+		return irq_id;
+
 	ret = devm_request_irq(dev, irq_id, mt6797_afe_irq_handler,
 			       IRQF_TRIGGER_NONE, "asys-isr", (void *)afe);
 	if (ret) {
-- 
2.20.1.windows.1