From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Fri, 18 Apr 2014 14:47:30 +0000 (+0200)
Subject: extcon: max14577: Properly handle regmap_irq_get_virq error
X-Git-Tag: v3.14.10~103
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=57a30a41fd5191c6eef3e868e2ae2d365c74b0f2;p=platform%2Fkernel%2Flinux-stable.git

extcon: max14577: Properly handle regmap_irq_get_virq error

commit 369afd4ba22f5b8de0c9229b6e62b3f9e2207034 upstream.

The regmap_irq_get_virq may return 0 or -EINVAL on error. Fail the probe
in both situations.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
index 1fef08d..5c948c9 100644
--- a/drivers/extcon/extcon-max14577.c
+++ b/drivers/extcon/extcon-max14577.c
@@ -650,7 +650,7 @@ static int max14577_muic_probe(struct platform_device *pdev)
 		unsigned int virq = 0;
 
 		virq = regmap_irq_get_virq(max14577->irq_data, muic_irq->irq);
-		if (!virq)
+		if (virq <= 0)
 			return -EINVAL;
 		muic_irq->virq = virq;