[BLUETOOTH]: l2cap info_timer delete fix in hci_conn_del

When the l2cap info_timer is active the info_state will be set to
L2CAP_INFO_FEAT_MASK_REQ_SENT, and it will be unset after the timer is
deleted or timeout triggered.

Here in l2cap_conn_del only call del_timer_sync when the info_state is
set to L2CAP_INFO_FEAT_MASK_REQ_SENT.

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 7c5459c8e8e..34f8bf98bc0 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -417,7 +417,8 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err)
                 l2cap_sock_kill(sk);
         }
 
-        del_timer_sync(&conn->info_timer);
+        if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT)
+                del_timer_sync(&conn->info_timer);
 
         hcon->l2cap_data = NULL;
         kfree(conn);