media: cec: copy sequence field for the reply

commit 13cbaa4c2b7bf9f8285e1164d005dbf08244ecd5 upstream.

When the reply for a non-blocking transmit arrives, the sequence
field for that reply was never filled in, so userspace would have no
way of associating the reply to the original transmit.

Copy the sequence field to ensure that this is now possible.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Fixes: 0dbacebede1e ([media] cec: move the CEC framework out of staging and to media)
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c
index 061b7824f698fcf4cb60f808a1c3f1348ff63439..2765ca732b95906ee6eb15c8d9dfe9bfe1064622 100644 (file)
--- a/drivers/media/cec/cec-adap.c
+++ b/drivers/media/cec/cec-adap.c
@@ -1135,6 +1135,7 @@ void cec_received_msg_ts(struct cec_adapter *adap,
                        if (abort)
                                dst->rx_status |= CEC_RX_STATUS_FEATURE_ABORT;
                        msg->flags = dst->flags;
+                       msg->sequence = dst->sequence;
                        /* Remove it from the wait_queue */
                        list_del_init(&data->list);