diff mbox

[2/5,v4] ASoC: mt8173: Fix platform_get_irq's error checking

Message ID 3486c0c54d071b1d5cab0c070f2cc7ab63ef0806.1511062844.git.arvind.yadav.cs@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Arvind Yadav Nov. 19, 2017, 4:15 a.m. UTC 
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 mbox

Patch

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;
 	}