linux-kernel - [PATCH 3.4 042/176] cdc-acm: memory leak in error case

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Message-Id: <1428569224-23820-42-git-send-email-lizf@kernel.org>
Date:	Thu,  9 Apr 2015 16:44:50 +0800
From:	lizf@...nel.org
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Oliver Neukum <oneukum@...e.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Zefan Li <lizefan@...wei.com>
Subject: [PATCH 3.4 042/176] cdc-acm: memory leak in error case

From: Oliver Neukum <oneukum@...e.de>

3.4.107-rc1 review patch.  If anyone has any objections, please let me know.

------------------


commit d908f8478a8d18e66c80a12adb27764920c1f1ca upstream.

If probe() fails not only the attributes need to be removed
but also the memory freed.

Reported-by: Ahmed Tamrawi <ahmedtamrawi@...il.com>
Signed-off-by: Oliver Neukum <oneukum@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Zefan Li <lizefan@...wei.com>
---
 drivers/usb/class/cdc-acm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 8f4a628..cd8550a 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1429,6 +1429,7 @@ static void acm_disconnect(struct usb_interface *intf)
 				&dev_attr_wCountryCodes);
 		device_remove_file(&acm->control->dev,
 				&dev_attr_iCountryCodeRelDate);
+		kfree(acm->country_codes);
 	}
 	device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities);
 	usb_set_intfdata(acm->control, NULL);
-- 
1.9.1

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