linux-kernel - [PATCH] phy: cpcap-usb: Fix platform_get_irq

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Date:   Fri, 17 Nov 2017 16:48:43 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     kishon@...com, tony@...mide.com, robh@...nel.org,
        dan.carpenter@...cle.com
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] phy: cpcap-usb: Fix platform_get_irq_byname's error checking

The platform_get_irq_byname() function returns -1 if an error occurs.
zero or positive number on success. platform_get_irq_byname() error
checking for zero is not correct.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/phy/motorola/phy-cpcap-usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/motorola/phy-cpcap-usb.c b/drivers/phy/motorola/phy-cpcap-usb.c
index accaaac..6601ad0 100644
--- a/drivers/phy/motorola/phy-cpcap-usb.c
+++ b/drivers/phy/motorola/phy-cpcap-usb.c
@@ -310,7 +310,7 @@ static int cpcap_usb_init_irq(struct platform_device *pdev,
 	int irq, error;
 
 	irq = platform_get_irq_byname(pdev, name);
-	if (!irq)
+	if (irq < 0)
 		return -ENODEV;
 
 	error = devm_request_threaded_irq(ddata->dev, irq, NULL,
-- 
2.7.4