linux-kernel - [PATCH 09/10 v2] Input: sirfsoc-onkey: Handle return value of platform_get

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Message-Id: <fe9a26770ba88ab9efee23dc28782dc0891b1d1a.1510999334.git.arvind.yadav.cs@gmail.com>
Date:   Sat, 18 Nov 2017 16:25:16 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     dmitry.torokhov@...il.com, maxime.ripard@...e-electrons.com,
        wens@...e.org, mcuos.com@...il.com, linux@...ck-us.net,
        linux@...linux.org.uk, lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 09/10 v2] Input: sirfsoc-onkey: Handle return value of platform_get_irq

platform_get_irq() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
changes in v2 :
              Add failure case '<= 0' instead of '< 0'. IRQ0 is not valid.

 drivers/input/misc/sirfsoc-onkey.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/input/misc/sirfsoc-onkey.c b/drivers/input/misc/sirfsoc-onkey.c
index 4fd038d..de04b48 100644
--- a/drivers/input/misc/sirfsoc-onkey.c
+++ b/drivers/input/misc/sirfsoc-onkey.c
@@ -149,6 +149,9 @@ static int sirfsoc_pwrc_probe(struct platform_device *pdev)
 	sirfsoc_pwrc_toggle_interrupts(pwrcdrv, false);
 
 	irq = platform_get_irq(pdev, 0);
+	if (irq <= 0)
+		return irq;
+
 	error = devm_request_irq(&pdev->dev, irq,
 				 sirfsoc_pwrc_isr, 0,
 				 "sirfsoc_pwrc_int", pwrcdrv);
-- 
2.7.4