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Bluetooth: controller: split: Fix regression in handling invalid pkt seq

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Fix regression in handling invalid packet sequence in the
first packet in a connection.

This relates to commit 62c1e1a52b ("Bluetooth: controller:
split: Fix assert on invalid packet sequence")

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada 2020-03-17 12:05:21 +05:30 • committed by Carles Cufí
commit 5474dbb544
1 changed files with 5 additions and 3 deletions
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8
subsys/bluetooth/controller/ll_sw/nordic/lll/lll_conn.c
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@ -688,6 +688,7 @@ static int isr_rx_pdu(struct lll_conn *lll, struct pdu_data *pdu_data_rx,
if (link) {
struct pdu_data *pdu_data_tx;
u8_t pdu_data_tx_len;
u8_t offset;
pdu_data_tx = (void *)(tx->pdu +
lll->packet_tx_head_offset);
@ -702,9 +703,10 @@ static int isr_rx_pdu(struct lll_conn *lll, struct pdu_data *pdu_data_rx,
}
#endif /* CONFIG_BT_CTLR_LE_ENC */
lll->packet_tx_head_offset += pdu_data_tx_len;
if (lll->packet_tx_head_offset ==
lll->packet_tx_head_len) {
offset = lll->packet_tx_head_offset + pdu_data_tx_len;
if (offset < lll->packet_tx_head_len) {
lll->packet_tx_head_offset = offset;
} else if (offset == lll->packet_tx_head_len) {
lll->packet_tx_head_len = 0;
lll->packet_tx_head_offset = 0;