Bluetooth: Remove struct del_list

As we use struct list_head to keep L2CAP channels list the workaround with
del_list is not needed anymore.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

1 files changed, 7 insertions, 17 deletions

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 0dbbaf394c13..b0aaaa9cf00e 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -487,16 +487,13 @@ void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk, int err)
 /* ---- L2CAP connections ---- */
 static void l2cap_conn_start(struct l2cap_conn *conn)
 {
-        struct sock_del_list del, *tmp1, *tmp2;
-        struct l2cap_chan *chan;
+        struct l2cap_chan *chan, *tmp;
 
         BT_DBG("conn %p", conn);
 
-        INIT_LIST_HEAD(&del.list);
-
         read_lock(&conn->chan_lock);
 
-        list_for_each_entry(chan, &conn->chan_l, list) {
+        list_for_each_entry_safe(chan, tmp, &conn->chan_l, list) {
                 struct sock *sk = chan->sk;
 
                 bh_lock_sock(sk);
@@ -520,10 +517,11 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
                                         conn->feat_mask)
                                         && l2cap_pi(sk)->conf_state &
                                         L2CAP_CONF_STATE2_DEVICE) {
-                                tmp1 = kzalloc(sizeof(struct sock_del_list),
-                                                GFP_ATOMIC);
-                                tmp1->sk = sk;
-                                list_add_tail(&tmp1->list, &del.list);
+                                /* __l2cap_sock_close() calls list_del(chan)
+                                 * so release the lock */
+                                read_unlock_bh(&conn->chan_lock);
+                                 __l2cap_sock_close(sk, ECONNRESET);
+                                read_lock_bh(&conn->chan_lock);
                                 bh_unlock_sock(sk);
                                 continue;
                         }
@@ -579,14 +577,6 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
         }
 
         read_unlock(&conn->chan_lock);
-
-        list_for_each_entry_safe(tmp1, tmp2, &del.list, list) {
-                bh_lock_sock(tmp1->sk);
-                __l2cap_sock_close(tmp1->sk, ECONNRESET);
-                bh_unlock_sock(tmp1->sk);
-                list_del(&tmp1->list);
-                kfree(tmp1);
-        }
 }
 
 /* Find socket with cid and source bdaddr.