From 5947956bdcf1aff31caba90f80f363340e18cb56 Mon Sep 17 00:00:00 2001
From: Thomas Vegas <thomas@grouk.net>
Date: Sun, 1 Jun 2014 14:34:39 +0200
Subject: [PATCH] staging: rtl8712: Fix oops on dongle removal if firmware is
 not available

When firmware is not available, net device is not created. Upon
disconnect, we must check for net device existence before trying to
release net device private data.

Signed-off-by: Thomas Vegas <thomas@grouk.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Reading git-format-patch failed