From bf9d5d28aabc6e420a0b6fb3a24b93046878e864 Mon Sep 17 00:00:00 2001
From: Victor Goldenshtein <victorg@ti.com>
Date: Tue, 17 Sep 2013 18:41:25 +0300
Subject: [PATCH] wlcore: fix unsafe dereference of the wlvif

wlvif could be passed as NULL from the wlcore_tx_work_locked()
to the wl1271_prepare_tx_frame() and to wl1271_skb_queue_head()
functions. This may lead to a Kernel panic, fix this by
validating that wlvif != NULL.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
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