Bluetooth: Fix suspending the L2CAP socket if we start with 0 credits
If the peer gives us zero credits in its connection request or response
we must call the suspend channel callback so the BT_SK_SUSPEND flag gets
set and user space is blocked from sending data to the socket.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 407e9d6..82aa6f3 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1202,6 +1202,9 @@
chan->sdu_len = 0;
skb_queue_head_init(&chan->tx_q);
+
+ if (!chan->tx_credits)
+ chan->ops->suspend(chan);
}
static void l2cap_chan_ready(struct l2cap_chan *chan)