[patch 028/164] USB: kobil: fix memory leak

[Greg KH]

2.6.33-stable review patch.  If anyone has any objections, please let me know.

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

From: Johan Hovold <jhovold@xxxxxxxxx>

commit c0f631d1948658b27349545b2cbcb4b32f010c7a upstream.

An urb transfer buffer is allocated at every open but was never freed.

This driver is a bit of a mess...

Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 drivers/usb/serial/kobil_sct.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -345,7 +345,8 @@ static void kobil_close(struct usb_seria
 
 	/* FIXME: Add rts/dtr methods */
 	if (port->write_urb) {
-		usb_kill_urb(port->write_urb);
+		usb_poison_urb(port->write_urb);
+		kfree(port->write_urb->transfer_buffer);
 		usb_free_urb(port->write_urb);
 		port->write_urb = NULL;
 	}


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