[PATCH] ASoC: mt8173: Fix platform_get_irq's error checking

From: Arvind Yadav
Date: Wed Nov 29 2017 - 11:17:11 EST


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@xxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
sound/soc/mediatek/mt8173/mt8173-afe-pcm.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c b/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c
index 8a643a35d3d4..c7f7f8add5d9 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;
@@ -1105,9 +1105,9 @@ 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;
+ return irq_id < 0 ? irq_id : -ENXIO;
}
ret = devm_request_irq(afe->dev, irq_id, mt8173_afe_irq_handler,
0, "Afe_ISR_Handle", (void *)afe);
--
2.15.0