linux-kernel - [029/244] ath9k: Fix PS wrappers in ath9k_set_coverage

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Date:	Wed, 28 Sep 2011 14:59:53 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Mohammed Shafi Shajakhan <mohammed@....qualcomm.com>,
	"John W. Linville" <linville@...driver.com>
Subject: [029/244] ath9k: Fix PS wrappers in ath9k_set_coverage_class

3.0-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Mohammed Shafi Shajakhan <mohammed@....qualcomm.com>

commit 8b2a3827bb12430d932cd479b22d906baf08c212 upstream.

this callback is called during suspend/resume and also via iw command.
it configures parameters like sifs, slottime, acktimeout in
ath9k_hw_init_global_settings where few REG_READ, REG_RMW are also done
and hence the need for PS wrappers

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@....qualcomm.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/net/wireless/ath/ath9k/main.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2260,7 +2260,11 @@ static void ath9k_set_coverage_class(str
 
 	mutex_lock(&sc->mutex);
 	ah->coverage_class = coverage_class;
+
+	ath9k_ps_wakeup(sc);
 	ath9k_hw_init_global_settings(ah);
+	ath9k_ps_restore(sc);
+
 	mutex_unlock(&sc->mutex);
 }
 


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