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Date: Mon, 22 Jun 2009 18:23:43 +0200
From: Jiri Slaby <jirislaby@gmail.com>
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To: "Luis R. Rodriguez" <lrodriguez@atheros.com>
CC: jmalinen@atheros.com, Sujith.Manoharan@atheros.com,
	vasanth@atheros.com, senthilkumar@atheros.com,
	ath9k-devel@lists.ath9k.org, linux-wireless@vger.kernel.org
Subject: ath9k: ath9k_ps_restore used after ath9k_hw_detach
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Hi,

In ath_detach, there is:
ath9k_hw_detach(sc->sc_ah);
ath9k_exit_debug(sc);
ath9k_ps_restore(sc);
which is obviously wrong. sc->ah is dereferenced in restore, but it's
already freed since detach.

I don't quite understand why you try to set power while it's being
already set to full sleep in ath9k_hw_detach. So I think the fix is to
remove the restore call, but dunno. So please fix it anyhow :).