From: Sujith <Sujith.Manoharan@atheros.com>
Date: Wed, 16 Dec 2009 16:51:41 +0000 (-0500)
Subject: ath9k: Fix TX hang poll routine
X-Git-Tag: v2.6.32.2~34
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=978962f22c95c70f9018a9181c73525d26f0f3bd;p=karo-tx-linux.git

ath9k: Fix TX hang poll routine

This is a backport of upstream commit: 332c556633b8c5fb4e890b1783122f2315526590

When TX is hung, the chip is reset. Ensure that
the chip is awake by using the PS wrappers.


Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 42551a48c8ac..972e775b3623 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2065,7 +2065,9 @@ static void ath_tx_complete_poll_work(struct work_struct *work)
 
 	if (needreset) {
 		DPRINTF(sc, ATH_DBG_RESET, "tx hung, resetting the chip\n");
+		ath9k_ps_wakeup(sc);
 		ath_reset(sc, false);
+		ath9k_ps_restore(sc);
 	}
 
 	ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work,