From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Date: Tue, 2 Nov 2021 12:24:26 +0000 (+0000)
Subject: media: cec: copy sequence field for the reply
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=13cbaa4c2b7bf9f8285e1164d005dbf08244ecd5;p=linux.git

media: cec: copy sequence field for the reply

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>
---

diff --git a/drivers/media/cec/core/cec-adap.c b/drivers/media/cec/core/cec-adap.c
index 79fa36de8a04a..cd9cb354dc2c7 100644
--- a/drivers/media/cec/core/cec-adap.c
+++ b/drivers/media/cec/core/cec-adap.c
@@ -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);