The platform_get_irq() function returns negative if an error occurs. zero or positive number on success. platform_get_irq() error checking for zero is not correct.
Signed-off-by: Arvind Yadav arvind.yadav.cs@gmail.com --- changes in v2 : irq was unsigned. so changed it to signed. changes in v3 : Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid. changes in v4 : Return -ENODEV insted of irq_id.
sound/soc/mediatek/mt8173/mt8173-afe-pcm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c b/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c index 8a643a3..1153566 100644 --- a/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c +++ b/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c @@ -1083,7 +1083,7 @@ static int mt8173_afe_init_audio_clk(struct mtk_base_afe *afe) static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) { int ret, i; - unsigned int irq_id; + int irq_id; struct mtk_base_afe *afe; struct mt8173_afe_private *afe_priv; struct resource *res; @@ -1105,7 +1105,7 @@ static int mt8173_afe_pcm_dev_probe(struct platform_device *pdev) afe->dev = &pdev->dev;
irq_id = platform_get_irq(pdev, 0); - if (!irq_id) { + if (irq_id <= 0) { dev_err(afe->dev, "np %s no irq\n", afe->dev->of_node->name); return -ENXIO; }