linux-kernel - [PATCH] staging: rtl8188eu: rtw

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Message-ID: <20141229054706.GA8062@fedora.localdomain>
Date:	Sun, 28 Dec 2014 21:47:06 -0800
From:	Serguey Parkhomovsky <sergueyparkhomovsky@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	navin patidar <navin.patidar@...il.com>,
	Larry Finger <Larry.Finger@...inger.net>,
	Elena Oat <oat.elena@...il.com>, Tim Jester-Pfadt <t.jp@....de>
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: rtl8188eu: rtw_mlme.c: fix sparse warning

Fixes the following sparse warning for rtw_mlme.c:

drivers/staging/rtl8188eu/core/rtw_mlme.c:810:9: warning: context imbalance in 'rtw_free_assoc_resources' - different lock contexts for basic block

Signed-off-by: Serguey Parkhomovsky <sergueyparkhomovsky@...il.com>
---
 drivers/staging/rtl8188eu/core/rtw_mlme.c | 37 ++++++++++++++++++++-----------
 1 file changed, 24 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c
index d4632da..a47717a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c
@@ -755,12 +755,30 @@ static void free_scanqueue(struct	mlme_priv *pmlmepriv)
 	spin_unlock_bh(&scan_queue->lock);
 }
 
+static void rtw_free_current_network(struct adapter *adapter)
+{
+	struct wlan_network *pwlan = NULL;
+	struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
+	struct wlan_network *tgt_network = &pmlmepriv->cur_network;
+
+	pwlan = rtw_find_network(&pmlmepriv->scanned_queue,
+				 tgt_network->network.MacAddress);
+	if (pwlan)
+		pwlan->fixed = false;
+	else
+		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_,
+			("rtw_free_assoc_resources:pwlan==NULL\n\n"));
+
+	if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) &&
+			 (adapter->stapriv.asoc_sta_count == 1))
+		rtw_free_network_nolock(pmlmepriv, pwlan);
+}
+
 /*
 *rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
 */
 void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
 {
-	struct wlan_network *pwlan = NULL;
 	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;
 	struct	sta_priv *pstapriv = &adapter->stapriv;
 	struct wlan_network *tgt_network = &pmlmepriv->cur_network;
@@ -793,20 +811,13 @@ void rtw_free_assoc_resources(struct adapter *adapter, int lock_scanned_queue)
 		rtw_init_bcmc_stainfo(adapter);
 	}
 
-	if (lock_scanned_queue)
+	if (lock_scanned_queue) {
 		spin_lock_bh(&(pmlmepriv->scanned_queue.lock));
-
-	pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
-	if (pwlan)
-		pwlan->fixed = false;
-	else
-		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("rtw_free_assoc_resources:pwlan==NULL\n\n"));
-
-	if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count == 1)))
-		rtw_free_network_nolock(pmlmepriv, pwlan);
-
-	if (lock_scanned_queue)
+		rtw_free_current_network(adapter);
 		spin_unlock_bh(&pmlmepriv->scanned_queue.lock);
+	} else
+		rtw_free_current_network(adapter);
+
 	pmlmepriv->key_mask = 0;
 }
 
-- 
1.9.3

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