ath9k: set ah to null after freeing

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-08-03 12:24:52 -07:00 • committed by John W. Linville
commit 9db6b6a25f