From c4ea249f5f164957ec8402ba9f3b827d740b299c Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Mon, 16 Sep 2013 13:05:15 +0300 Subject: [PATCH] Bluetooth: Fix L2CAP Disconnect response for unknown CID If we receive an L2CAP Disconnect Request for an unknown CID we should not just silently drop it but reply with a proper Command Reject response. This patch fixes this by ensuring that the disconnect handler returns a proper error instead of 0 and will cause the function caller to send the right response. Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan --- net/bluetooth/l2cap_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index eb60cf78af77..31bf81275990 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -4206,7 +4206,7 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, chan = __l2cap_get_chan_by_scid(conn, dcid); if (!chan) { mutex_unlock(&conn->chan_lock); - return 0; + return -EBADSLT; } l2cap_chan_lock(chan); -- 2.34.1