From 60c01a977814788178362ff0e1a22dfbf106eede Mon Sep 17 00:00:00 2001
From: Stefan Hajnoczi <stefanha@gmail.com>
Date: Sat, 10 Dec 2011 02:12:27 +0100
Subject: [PATCH] staging: line6: fix memory leak in .hw_params()

The .hw_params() pcm callback can be invoked multiple times in a row.
Ensure that the URB data buffer is only allocated once.

Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Markus Grabner <grabner@icg.tugraz.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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