Bluetooth: Use ERR_PTR as return error from hci_connect

Use ERR_PTR mechanism to return error from hci_connect.

Signed-off-by: Ville Tervo <ville.tervo@nokia.com>
Signed-off-by: Anderson Briglia <anderson.briglia@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

diff --cc net/bluetooth/hci_conn.c
Simple merge

diff --cc net/bluetooth/l2cap_core.c
Simple merge

diff --cc net/bluetooth/mgmt.c
Simple merge

diff --cc net/bluetooth/sco.c
Simple merge