From c2010a3b9e5e98efb7f70d4d73ce4f15508ffa7b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@suse.de>
Date: Mon, 14 Apr 2008 14:17:29 -0700
Subject: [PATCH] checkpatch: usb_free_urb() can take NULL

usb_free_urb() can take a NULL, so let's check and warn about that.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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