iwlwifi: fix situation in which debug message is printed

3945 does not have update_chain_flags defined and because if this we always
see the debug message that does not apply to it. Add a check to be specific
about what is actually happening.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 081a7ea..4ec6a83 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -321,7 +321,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
                        if (priv->cfg->ops->lib->update_chain_flags &&
                            update_chains)
                                priv->cfg->ops->lib->update_chain_flags(priv);
-                       else
+                       else if (priv->cfg->ops->lib->update_chain_flags)
                                IWL_DEBUG_POWER(priv,
                                        "Cannot update the power, chain noise "
                                        "calibration running: %d\n",