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Bluetooth: Controller: Fix missing node rx release on legacy CPR reject

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Legacy Control Procedure fix. Fix missing release of the
node rx allocation that was reserved at the start of the
LE Connection Parameter Request procedure and the procedure
ends with reject indication transmitted to the initiating
peer.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada 2022-10-12 19:29:30 +05:30 • committed by Alberto Escolar
commit c325347816
1 changed files with 13 additions and 0 deletions
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13
subsys/bluetooth/controller/ll_sw/ull_conn.c
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@ -3302,6 +3302,19 @@ static inline int event_conn_upd_prep(struct ll_conn *conn, uint16_t lazy,
llctrl.conn_update_ind.win_offset);
tx = CONTAINER_OF(pdu_ctrl_tx, struct node_tx, pdu);
ctrl_tx_enqueue(conn, tx);
/* Acquire the reserved Rx node */
rx = conn->llcp_rx;
LL_ASSERT(rx && rx->hdr.link);
conn->llcp_rx = rx->hdr.link->mem;
/* Mark for buffer for release */
rx->hdr.type = NODE_RX_TYPE_RELEASE;
/* enqueue rx node towards Thread */
ll_rx_put(rx->hdr.link, rx);
ll_rx_sched();
return -ECANCELED;
#endif /* CONFIG_BT_CTLR_CONN_PARAM_REQ */