1 files changed, 13 insertions, 13 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 16f834d0c486..bd6f600027d1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -252,12 +252,21 @@ static int iwl_update_power_command(struct iwl_priv *priv,
 /*
  * calucaute the final power mode index
  */
-int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh)
+int iwl_power_update_mode(struct iwl_priv *priv, bool force)
 {
         struct iwl_power_mgr *setting = &(priv->power_data);
         int ret = 0;
         u16 uninitialized_var(final_mode);
 
+        /* Don't update the RX chain when chain noise calibration is running */
+        if (priv->chain_noise_data.state != IWL_CHAIN_NOISE_DONE &&
+            priv->chain_noise_data.state != IWL_CHAIN_NOISE_ALIVE) {
+                IWL_DEBUG_POWER("Cannot update the power, chain noise "
+                        "calibration running: %d\n",
+                        priv->chain_noise_data.state);
+                return -EAGAIN;
+        }
+
        /* If on battery, set to 3,
         * if plugged into AC power, set to CAM ("continuously aware mode"),
         * else user level */
@@ -285,7 +294,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, u8 refresh)
                 final_mode = IWL_POWER_MODE_CAM;
 
         if (!iwl_is_rfkill(priv) && !setting->power_disabled &&
-            ((setting->power_mode != final_mode) || refresh)) {
+            ((setting->power_mode != final_mode) || force)) {
                 struct iwl_powertable_cmd cmd;
 
                 if (final_mode != IWL_POWER_MODE_CAM)
@@ -359,35 +368,26 @@ EXPORT_SYMBOL(iwl_power_enable_management);
 /* set user_power_setting */
 int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
 {
-        int ret = 0;
-
         if (mode > IWL_POWER_LIMIT)
                 return -EINVAL;
 
         priv->power_data.user_power_setting = mode;
 
-        ret = iwl_power_update_mode(priv, 0);
-
-        return ret;
+        return iwl_power_update_mode(priv, 0);
 }
 EXPORT_SYMBOL(iwl_power_set_user_mode);
 
-
 /* set system_power_setting. This should be set by over all
  * PM application.
  */
 int iwl_power_set_system_mode(struct iwl_priv *priv, u16 mode)
 {
-        int ret = 0;
-
         if (mode > IWL_POWER_LIMIT)
                 return -EINVAL;
 
         priv->power_data.system_power_setting = mode;
 
-        ret = iwl_power_update_mode(priv, 0);
-
-        return ret;
+        return iwl_power_update_mode(priv, 0);
 }
 EXPORT_SYMBOL(iwl_power_set_system_mode);