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media: cec: copy sequence field for the reply

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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>
This commit is contained in:
Hans Verkuil 2021-11-02 12:24:26 +00:00 committed by Greg Kroah-Hartman
parent 238c04518f
commit 02130f5e7c
1 changed files with 1 additions and 0 deletions
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drivers/media/cec/core/cec-adap.c
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@ -1199,6 +1199,7 @@ 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);