Bluetooth: Fix L2CAP nesting level initialization location

There's no reason why all users of L2CAP would need to worry about
initializing chan->nesting to L2CAP_NESTING_NORMAL (which is important
since 0 is the same as NESTING_SMP). This patch moves the initialization
to the common place that's used to create all new channels, i.e. the
l2cap_chan_create() function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/l2cap_core.c

@@ -424,6 +424,9 @@ struct l2cap_chan *l2cap_chan_create(void)
 
 	mutex_init(&chan->lock);
 
+	/* Set default lock nesting level */
+	atomic_set(&chan->nesting, L2CAP_NESTING_NORMAL);
+
 	write_lock(&chan_list_lock);
 	list_add(&chan->global_l, &chan_list);
 	write_unlock(&chan_list_lock);

net/bluetooth/l2cap_sock.c

@@ -1510,9 +1510,6 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
 		l2cap_chan_set_defaults(chan);
 	}
 
-	/* Set default lock nesting level */
-	atomic_set(&chan->nesting, L2CAP_NESTING_NORMAL);
-
 	/* Default config options */
 	chan->flush_to = L2CAP_DEFAULT_FLUSH_TO;