From: Gustavo F. Padovan <padovan@xxxxxxxxxxxxxx> At the time the channel is closed we can't really know if the timer was really deleted, since we used del_timer(). We can't call del_timer_sync() in interrupt context! So sometimes the acktimeout expires and try to send a acknowledgement, but we don't have any connection anymore. Signed-off-by: Gustavo F. Padovan <padovan@xxxxxxxxxxxxxx> Reviewed-by: João Paulo Rechi Vita <jprvita@xxxxxxxxxxxxxx> --- net/bluetooth/l2cap.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 3db0078..e5b766d 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -345,8 +345,12 @@ static inline void l2cap_send_sframe(struct l2cap_pinfo *pi, u16 control) struct sk_buff *skb; struct l2cap_hdr *lh; struct l2cap_conn *conn = pi->conn; + struct sock *sk = (struct sock *)pi; int count, hlen = L2CAP_HDR_SIZE + 2; + if (sk->sk_state != BT_CONNECTED) + return; + if (pi->fcs == L2CAP_FCS_CRC16) hlen += 2; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
