[PATCH] Orinoco: don't set channel in managed mode

Don't attempt to manually set the channel in infrastructure mode, the
  firmware doesn't like that much.  Also don't attempt to override the
  firmware's default channel number for IBSS mode (I believe default
  channel can vary by regulatory domain).
  
  Signed-off-by: David Gibson <hermes@gibson.dropbear.id.au>
  Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/wireless/orinoco.c

@@ -1615,17 +1615,15 @@ static int __orinoco_program_rids(struct net_device *dev)
 		return err;
 	}
 	/* Set the channel/frequency */
-	if (priv->channel == 0) {
-		printk(KERN_DEBUG "%s: Channel is 0 in __orinoco_program_rids()\n", dev->name);
-		if (priv->createibss)
-			priv->channel = 10;
-	}
-	err = hermes_write_wordrec(hw, USER_BAP, HERMES_RID_CNFOWNCHANNEL,
-				   priv->channel);
-	if (err) {
-		printk(KERN_ERR "%s: Error %d setting channel\n",
-		       dev->name, err);
-		return err;
+	if (priv->channel != 0 && priv->iw_mode != IW_MODE_INFRA) {
+		err = hermes_write_wordrec(hw, USER_BAP,
+					   HERMES_RID_CNFOWNCHANNEL,
+					   priv->channel);
+		if (err) {
+			printk(KERN_ERR "%s: Error %d setting channel %d\n",
+			       dev->name, err, priv->channel);
+			return err;
+		}
 	}
 
 	if (priv->has_ibss) {
@@ -2405,7 +2403,7 @@ static int orinoco_init(struct net_device *dev)
 	/* By default use IEEE/IBSS ad-hoc mode if we have it */
 	priv->prefer_port3 = priv->has_port3 && (! priv->has_ibss);
 	set_port_type(priv);
-	priv->channel = 10; /* default channel, more-or-less arbitrary */
+	priv->channel = 0; /* use firmware default */
 
 	priv->promiscuous = 0;
 	priv->wep_on = 0;