mac80211: fix an oops in several failure paths in key allocation
This patch fixes an oops in several failure paths in key allocation. This Oops occurs when freeing a key that has not been linked yet, so the key->sdata is not set. Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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