From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 27 Feb 2014 01:53:00 +0000 (+0800)
Subject: iwlwifi: dvm: don't send BT_CONFIG on devices w/o Bluetooth
X-Git-Tag: v3.4.83~6
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b38b29d58fe03950b2ccd5eaa9af2acb3c1f084d;p=thirdparty%2Fkernel%2Fstable.git

iwlwifi: dvm: don't send BT_CONFIG on devices w/o Bluetooth

commit 707aee401d2467baa785a697f40a6e2d9ee79ad5 upstream.

The BT_CONFIG command that is sent to the device during
startup will enable BT coex unless the module parameter
turns it off, but on devices without Bluetooth this may
cause problems, as reported in Redhat BZ 885407.

Fix this by sending the BT_CONFIG command only when the
device has Bluetooth.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
[bwh: Backported to 3.2:
 - Adjust filename
 - s/priv->lib/priv->cfg/]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
[wujg: Backported to 3.4:
 - s/priv->cfg/priv->shrd->cfg/]
Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 2a9a16f901c3f..69d2de11c8270 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -680,7 +680,7 @@ int iwl_alive_start(struct iwl_priv *priv)
 					 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
 		if (ret)
 			return ret;
-	} else {
+	} else if (priv->shrd->cfg->bt_params) {
 		/*
 		 * default is 2-wire BT coexexistence support
 		 */