Commits
Luis R. Rodriguez committed 39a21951efc
ath9k: remove !NULL check before kfree() kfree(NULL) works so remove all those branches which check for it before kfree()'ing on ath9k_hw_rfdetach(). Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>