linux-kernel - [PATCH] extcon: adc-jack: Fix checking return value of request_any_context

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Date:	Fri, 28 Sep 2012 07:36:17 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	linux-kernel@...r.kernel.org
Cc:	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	anish kumar <anish.singh@...sung.com>
Subject: [PATCH] extcon: adc-jack: Fix checking return value of
 request_any_context_irq

On failure, request_any_context_irq() returns a negative value.
On success, it returns either IRQC_IS_HARDIRQ or IRQC_IS_NESTED.

Also ensure adc_jack_probe() return 0 on success.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/extcon/extcon-adc-jack.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index 725eb5a..2cc6bec 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -161,13 +161,12 @@ static int __devinit adc_jack_probe(struct platform_device *pdev)
 	err = request_any_context_irq(data->irq, adc_jack_irq_thread,
 			pdata->irq_flags, pdata->name, data);
 
-	if (err) {
+	if (err < 0) {
 		dev_err(&pdev->dev, "error: irq %d\n", data->irq);
-		err = -EINVAL;
 		goto err_irq;
 	}
 
-	goto out;
+	return 0;
 
 err_irq:
 	extcon_dev_unregister(&data->edev);
-- 
1.7.9.5



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