From dd4dff8b035f6dda69ece98e20d4c2d76b9f97d1 Mon Sep 17 00:00:00 2001
From: Bryan Wu <cooloney@kernel.org>
Date: Thu, 8 Jan 2009 00:21:18 +0800
Subject: [PATCH] USB: composite: Fix bug: should test set_alt function pointer
 before use it

Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
Reading git-format-patch failed