cfg80211: fix mic_failure tracing
Eliad Peller authored
commit 8c26d458

 upstream.

tsc can be NULL (mac80211 currently always passes NULL),
resulting in NULL-dereference. check before copying it.
Signed-off-by: default avatarEliad Peller <eliadx.peller@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
c479a874