iwlwifi: clean iwl4965_mac_config

This patch cleans up iwl4965_mac_config.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 11 insertions, 12 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index e5e8ad829a92..c71daec8c746 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -1084,8 +1084,8 @@ static int iwl4965_scan_initiate(struct iwl_priv *priv)
 }
 
 
-static void iwl4965_set_flags_for_phymode(struct iwl_priv *priv,
-                                          enum ieee80211_band band)
+static void iwl_set_flags_for_band(struct iwl_priv *priv,
+                                   enum ieee80211_band band)
 {
         if (band == IEEE80211_BAND_5GHZ) {
                 priv->staging_rxon.flags &=
@@ -1170,7 +1170,7 @@ static void iwl4965_connection_init_rx_config(struct iwl_priv *priv)
         priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
         priv->band = ch_info->band;
 
-        iwl4965_set_flags_for_phymode(priv, priv->band);
+        iwl_set_flags_for_band(priv, priv->band);
 
         priv->staging_rxon.ofdm_basic_rates =
             (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
@@ -3823,6 +3823,7 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co
         const struct iwl_channel_info *ch_info;
         unsigned long flags;
         int ret = 0;
+        u16 channel;
 
         mutex_lock(&priv->mutex);
         IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel->hw_value);
@@ -3843,22 +3844,21 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co
                 return 0;
         }
 
-        spin_lock_irqsave(&priv->lock, flags);
-
-        ch_info = iwl_get_channel_info(priv, conf->channel->band,
-                        ieee80211_frequency_to_channel(conf->channel->center_freq));
+        channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
+        ch_info = iwl_get_channel_info(priv, conf->channel->band, channel);
         if (!is_channel_valid(ch_info)) {
                 IWL_DEBUG_MAC80211("leave - invalid channel\n");
-                spin_unlock_irqrestore(&priv->lock, flags);
                 ret = -EINVAL;
                 goto out;
         }
 
+        spin_lock_irqsave(&priv->lock, flags);
+
 #ifdef CONFIG_IWL4965_HT
         /* if we are switching from ht to 2.4 clear flags
          * from any ht related info since 2.4 does not
          * support ht */
-        if ((le16_to_cpu(priv->staging_rxon.channel) != conf->channel->hw_value)
+        if ((le16_to_cpu(priv->staging_rxon.channel) != channel)
 #ifdef IEEE80211_CONF_CHANNEL_SWITCH
             && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH)
 #endif
@@ -3866,10 +3866,9 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co
                 priv->staging_rxon.flags = 0;
 #endif /* CONFIG_IWL4965_HT */
 
-        iwl_set_rxon_channel(priv, conf->channel->band,
-                ieee80211_frequency_to_channel(conf->channel->center_freq));
+        iwl_set_rxon_channel(priv, conf->channel->band, channel);
 
-        iwl4965_set_flags_for_phymode(priv, conf->channel->band);
+        iwl_set_flags_for_band(priv, conf->channel->band);
 
         /* The list of supported rates and rate mask can be different
          * for each band; since the band may have changed, reset