From 29c3f9c3996abea060fa6e0b9e6a30d3f0cc828c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 10 Sep 2014 13:39:55 +0300
Subject: [PATCH] mac80211: clear key material when freeing keys

When freeing the key, clear the memory to avoid having the
key material stick around in memory "forever".

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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