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Subject[PATCH 2/5 v4] ASoC: mt8173: Fix platform_get_irq's error checking
Date
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;
}
--
2.7.4
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