linux-kernel - [PATCH 1/2] extcon: adc-jack: Fix platform_get

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Date:   Thu, 23 Nov 2017 21:25:29 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     myungjoo.ham@...sung.com, cw00.choi@...sung.com, wens@...e.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] extcon: adc-jack: Fix platform_get_irq's error checking

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@...il.com>
---
 drivers/extcon/extcon-adc-jack.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index 3877d86..1802635 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -144,7 +144,7 @@ static int adc_jack_probe(struct platform_device *pdev)
 		return err;
 
 	data->irq = platform_get_irq(pdev, 0);
-	if (!data->irq) {
+	if (data->irq < 0) {
 		dev_err(&pdev->dev, "platform_get_irq failed\n");
 		return -ENODEV;
 	}
-- 
2.7.4