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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@gmail.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
tom.leiming@gmail.com 2012-04-29 22:51:02 +00:00 committed by David S. Miller
parent 70f8002d78
commit 720f3d7cb1
1 changed files with 1 additions and 0 deletions
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1
drivers/net/usb/usbnet.c
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@ -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);