linux-kernel - [PATCH] usb: phy: return -ENODEV on failure of try_module

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Date:	Mon, 18 Aug 2014 00:04:42 +0530
From:	Arjun Sreedharan <arjun024@...il.com>
To:	balbi@...com
Cc:	gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] usb: phy: return -ENODEV on failure of try_module_get

When __usb_find_phy_dev() does not return error and
try_module_get() fails, return -ENODEV

Signed-off-by: Arjun Sreedharan <arjun024@...il.com>
---
 drivers/usb/phy/phy.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
index 36b6bce..8ad3638 100644
--- a/drivers/usb/phy/phy.c
+++ b/drivers/usb/phy/phy.c
@@ -232,6 +232,7 @@ struct usb_phy *usb_get_phy_dev(struct device *dev, u8 index)
 	phy = __usb_find_phy_dev(dev, &phy_bind_list, index);
 	if (IS_ERR(phy) || !try_module_get(phy->dev->driver->owner)) {
 		dev_dbg(dev, "unable to find transceiver\n");
+		phy = IS_ERR(phy) ? phy : ERR_PTR(-ENODEV);
 		goto err0;
 	}
 
-- 
1.7.11.7

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