linux-kernel - [ 108/127] iwlwifi: dvm: fix zero LQ CMD sending avoidance

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Date:	Wed,  5 Jun 2013 14:34:35 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Hinnerk van Bruinehsen <h.v.bruinehsen@...berlin.de>,
	Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
	Johannes Berg <johannes.berg@...el.com>
Subject: [ 108/127] iwlwifi: dvm: fix zero LQ CMD sending avoidance

3.9-stable review patch.  If anyone has any objections, please let me know.

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

From: Emmanuel Grumbach <emmanuel.grumbach@...el.com>

commit a87783699b23395c46bbeeb5d28f6db24897bf26 upstream.

In 63b77bf489881747c5118476918cc8c29378ee63

	iwlwifi: dvm: don't send zeroed LQ cmd

I tried to avoid to send zeroed LQ cmd, but I made a (very)
stupid mistake in the memcmp.
Since this patch has been ported to stable, the fix should
go to stable too.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=58341

Reported-by: Hinnerk van Bruinehsen <h.v.bruinehsen@...berlin.de>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@...el.com>
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/iwlwifi/dvm/sta.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/iwlwifi/dvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/dvm/sta.c
@@ -735,7 +735,7 @@ void iwl_restore_stations(struct iwl_pri
 					memcpy(&lq, priv->stations[i].lq,
 					       sizeof(struct iwl_link_quality_cmd));
 
-				if (!memcmp(&lq, &zero_lq, sizeof(lq)))
+				if (memcmp(&lq, &zero_lq, sizeof(lq)))
 					send_lq = true;
 			}
 			spin_unlock_bh(&priv->sta_lock);


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