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From: Zhu Yi <yi.zhu@intel.com>
To: linville@tuxdriver.com
Cc: linux-wireless@vger.kernel.org,
	Ron Rindjunsky <ron.rindjunsky@intel.com>,
	Zhu Yi <yi.zhu@intel.com>
Subject: [PATCH 24/25] iwlwifi: fix spinlock used before initialized
Date: Mon,  5 May 2008 10:22:51 +0800	[thread overview]
Message-ID: <1209954172-3092-25-git-send-email-yi.zhu@intel.com> (raw)
In-Reply-To: <1209954172-3092-24-git-send-email-yi.zhu@intel.com>

From: Ron Rindjunsky <ron.rindjunsky@intel.com>

The patch fixes spinlock priv->lock (apm_ops.init) is used before it has
been initialized.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-4965.c |    3 ---
 drivers/net/wireless/iwlwifi/iwl-core.c |    3 +--
 2 files changed, 1 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 9801c31..554b0d6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -489,10 +489,8 @@ static int iwl4965_disable_tx_fifo(struct iwl_priv *priv)
 
 static int iwl4965_apm_init(struct iwl_priv *priv)
 {
-	unsigned long flags;
 	int ret = 0;
 
-	spin_lock_irqsave(&priv->lock, flags);
 	iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
 			  CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
 
@@ -524,7 +522,6 @@ static int iwl4965_apm_init(struct iwl_priv *priv)
 
 	iwl_release_nic_access(priv);
 out:
-	spin_unlock_irqrestore(&priv->lock, flags);
 	return ret;
 }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 2158881..49c8a4b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -174,9 +174,8 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
 	int ret;
 
 	/* nic_init */
-	priv->cfg->ops->lib->apm_ops.init(priv);
-
 	spin_lock_irqsave(&priv->lock, flags);
+	priv->cfg->ops->lib->apm_ops.init(priv);
 	iwl_write32(priv, CSR_INT_COALESCING, 512 / 32);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-- 
1.5.3.6


  reply	other threads:[~2008-05-05  2:24 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1209954172-3092-1-git-send-email-yi.zhu@intel.com>
2008-05-05  2:22 ` [PATCH 01/25] iwlwifi: move RX code to iwl-rx.c Zhu Yi
2008-05-05  2:22   ` [PATCH 02/25] iwlwifi-5000: rename iwl5000_init_nic to iwl5000_init_config Zhu Yi
2008-05-05  2:22     ` [PATCH 03/25] iwlwifi: don't override association channel with control channel Zhu Yi
2008-05-05  2:22       ` [PATCH 04/25] iwlwifi: remove 4965 from station_entry Zhu Yi
2008-05-05  2:22         ` [PATCH 05/25] iwlwifi: debugfs EEPROM dump Zhu Yi
2008-05-05  2:22           ` [PATCH 06/25] iwlwifi: remove 4965 from rx_packet Zhu Yi
2008-05-05  2:22             ` [PATCH 07/25] iwlwifi: generalize iwl4965_send_add_station function Zhu Yi
2008-05-05  2:22               ` [PATCH 08/25] iwlwifi-5000: add build_addsta_hcmd handler for 5000 HW Zhu Yi
2008-05-05  2:22                 ` [PATCH 09/25] iwlwifi: Fix unconditional access to station->tidp[].agg Zhu Yi
2008-05-05  2:22                   ` [PATCH 10/25] iwlwifi: Fix built-in compilation of iwlcore Zhu Yi
2008-05-05  2:22                     ` [PATCH 11/25] iwlwifi: Fix built-in compilation of iwlcore (part 2) Zhu Yi
2008-05-05  2:22                       ` [PATCH 12/25] iwlwifi: Allow building iwl3945 without iwl4965 Zhu Yi
2008-05-05  2:22                         ` [PATCH 13/25] iwlwifi: move per driverdebug_level to per device Zhu Yi
2008-05-05  2:22                           ` [PATCH 14/25] iwlwifi: move iwl4965_set_rxon_ht into iwlcore Zhu Yi
2008-05-05  2:22                             ` [PATCH 15/25] iwlwifi: create disable SCD Tx FIFOs handler Zhu Yi
2008-05-05  2:22                               ` [PATCH 16/25] iwlwifi: move NIC init and Tx queues init to iwlcore Zhu Yi
2008-05-05  2:22                                 ` [PATCH 17/25] iwlwifi: compile iwl-sta into iwlcore Zhu Yi
2008-05-05  2:22                                   ` [PATCH 18/25] iwlwifi: move iwl4965_init_alive_start to iwl-4965.c Zhu Yi
2008-05-05  2:22                                     ` [PATCH 19/25] iwlwifi: fix compile error when CONFIG_MAC80211_DEBUGFS is not selected Zhu Yi
2008-05-05  2:22                                       ` [PATCH 20/25] iwlwifi : Set monitor mode for 4965 Zhu Yi
2008-05-05  2:22                                         ` [PATCH 21/25] iwlwifi : Set monitor mode for 3945 Zhu Yi
2008-05-05  2:22                                           ` [PATCH 22/25] iwlwifi: handle shared memory Rx index access Zhu Yi
2008-05-05  2:22                                             ` [PATCH 23/25] iwlwifi: remove 4965 prefix from iwl4965_kw and iwl4965_tx_queue Zhu Yi
2008-05-05  2:22                                               ` Zhu Yi [this message]
2008-05-05  2:22                                                 ` [PATCH 25/25] iwlwifi: map A-MPDU HW queue to mac80211 A-MPDU SW queue Zhu Yi
2008-05-06  9:09                                                   ` Tomas Winkler
2008-05-06  9:11                                                     ` Tomas Winkler
2008-05-06  9:38                                                       ` Johannes Berg
2008-05-06 10:34                                                         ` Tomas Winkler
2008-05-06 10:37                                                           ` Johannes Berg
2008-05-06 10:46                                                             ` Tomas Winkler
2008-05-06 10:48                                                               ` Johannes Berg
2008-05-06  9:16                                                     ` Johannes Berg
2008-05-05  7:11                                         ` [PATCH 20/25] iwlwifi : Set monitor mode for 4965 Johannes Berg
2008-05-05  8:05                                           ` Zhu Yi
2008-05-05  8:28                                             ` Johannes Berg
2008-05-05  8:53                                               ` Zhu Yi
2008-05-05  9:05                                                 ` Johannes Berg
2008-05-05  9:31                                                   ` Tomas Winkler

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