iwlwifi: replace IWL_ERROR with IWL_ERR

IWL_ERR doesn't use hidden priv pointer.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-rfkill.c b/drivers/net/wireless/iwlwifi/iwl-rfkill.c
index cece1c5..98df755 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rfkill.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rfkill.c
@@ -82,7 +82,7 @@
 	IWL_DEBUG_RF_KILL("Initializing RFKILL.\n");
 	priv->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN);
 	if (!priv->rfkill) {
-		IWL_ERROR("Unable to allocate RFKILL device.\n");
+		IWL_ERR(priv, "Unable to allocate RFKILL device.\n");
 		ret = -ENOMEM;
 		goto error;
 	}
@@ -98,7 +98,7 @@
 
 	ret = rfkill_register(priv->rfkill);
 	if (ret) {
-		IWL_ERROR("Unable to register RFKILL: %d\n", ret);
+		IWL_ERR(priv, "Unable to register RFKILL: %d\n", ret);
 		goto free_rfkill;
 	}