linux-kernel - [v2.6.34-stable 143/213] USB: serial: Fix memory leak in sierra

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Message-ID: <1391630568-49251-144-git-send-email-paul.gortmaker@windriver.com>
Date:	Wed, 5 Feb 2014 15:01:38 -0500
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	<stable@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:	Lennart Sorensen <lsorense@...lub.uwaterloo.ca>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [v2.6.34-stable 143/213] USB: serial: Fix memory leak in sierra_release()

From: Lennart Sorensen <lsorense@...lub.uwaterloo.ca>

                   -------------------
    This is a commit scheduled for the next v2.6.34 longterm release.
    http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
    If you see a problem with using this for longterm, please comment.
                   -------------------

commit f7bc5051667b74c3861f79eed98c60d5c3b883f7 upstream.

I found a memory leak in sierra_release() (well sierra_probe() I guess)
that looses 8 bytes each time the driver releases a device.

Signed-off-by: Len Sorensen <lsorense@...lub.uwaterloo.ca>
Acked-by: Johan Hovold <jhovold@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 drivers/usb/serial/sierra.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index e3f32a41ef34..42ea133b0d57 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -980,6 +980,7 @@ static void sierra_release(struct usb_serial *serial)
 			continue;
 		kfree(portdata);
 	}
+	kfree(serial->private);
 }
 
 #ifdef CONFIG_PM
-- 
1.8.5.2

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