iwlwifi: rename priv->scan to priv->scan_cmd

I keep checking what "priv->scan" is, so rename
it to "priv->scan_cmd" which more clearly tells
us what it is.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index af32359..0f77397 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -2852,15 +2852,15 @@
 		goto done;
 	}
 
-	if (!priv->scan) {
-		priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) +
-				     IWL_MAX_SCAN_SIZE, GFP_KERNEL);
-		if (!priv->scan) {
+	if (!priv->scan_cmd) {
+		priv->scan_cmd = kmalloc(sizeof(struct iwl3945_scan_cmd) +
+					 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
+		if (!priv->scan_cmd) {
 			IWL_DEBUG_SCAN(priv, "Fail to allocate scan memory\n");
 			goto done;
 		}
 	}
-	scan = priv->scan;
+	scan = priv->scan_cmd;
 	memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
 
 	scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
@@ -4245,7 +4245,7 @@
 
 	iwl_free_channel_map(priv);
 	iwlcore_free_geos(priv);
-	kfree(priv->scan);
+	kfree(priv->scan_cmd);
 	if (priv->ibss_beacon)
 		dev_kfree_skb(priv->ibss_beacon);