netdev - [PATCH 1/3] usbnet: fix leak of transfer buffer of dev->interrupt

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Message-Id: <1335775864-4873-2-git-send-email-tom.leiming@gmail.com>
Date:	Mon, 30 Apr 2012 16:51:02 +0800
From:	Ming Lei <tom.leiming@...il.com>
To:	"David S. Miller" <davem@...emloft.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	netdev@...r.kernel.org, linux-usb@...r.kernel.org,
	Ming Lei <tom.leiming@...il.com>
Subject: [PATCH 1/3] usbnet: fix leak of transfer buffer of dev->interrupt

The transfer buffer of dev->interrupt is allocated in .probe path,
but not freed in .disconnet path, so mark the interrupt URB as
URB_FREE_BUFFER to free the buffer when the URB is destroyed.

Signed-off-by: Ming Lei <tom.leiming@...il.com>
---
 drivers/net/usb/usbnet.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index db99536..5b38a3a 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -210,6 +210,7 @@ static int init_status (struct usbnet *dev, struct usb_interface *intf)
 		} else {
 			usb_fill_int_urb(dev->interrupt, dev->udev, pipe,
 				buf, maxp, intr_complete, dev, period);
+			dev->interrupt->transfer_flags |= URB_FREE_BUFFER;
 			dev_dbg(&intf->dev,
 				"status ep%din, %d bytes period %d\n",
 				usb_pipeendpoint(pipe), maxp, period);
-- 
1.7.9.5

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