From cec935ce69fc386f13959578deb40963ebbb85c3 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Date: Wed, 4 Dec 2019 08:52:08 +0100
Subject: [PATCH] media: cec: CEC 2.0-only bcast messages were ignored
Git-commit: cec935ce69fc386f13959578deb40963ebbb85c3
References: git-fixes
Patch-mainline: v5.5
Some messages are allowed to be a broadcast message in CEC 2.0
only, and should be ignored by CEC 1.4 devices.
Unfortunately, the check was wrong, causing such messages to be
marked as invalid under CEC 2.0.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: <stable@vger.kernel.org> # for v4.10 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/media/cec/cec-adap.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c
index 9340435a94a0..e90c30dac68b 100644
--- a/drivers/media/cec/cec-adap.c
+++ b/drivers/media/cec/cec-adap.c
@@ -1085,11 +1085,11 @@ void cec_received_msg_ts(struct cec_adapter *adap,
valid_la = false;
else if (!cec_msg_is_broadcast(msg) && !(dir_fl & DIRECTED))
valid_la = false;
- else if (cec_msg_is_broadcast(msg) && !(dir_fl & BCAST1_4))
+ else if (cec_msg_is_broadcast(msg) && !(dir_fl & BCAST))
valid_la = false;
else if (cec_msg_is_broadcast(msg) &&
- adap->log_addrs.cec_version >= CEC_OP_CEC_VERSION_2_0 &&
- !(dir_fl & BCAST2_0))
+ adap->log_addrs.cec_version < CEC_OP_CEC_VERSION_2_0 &&
+ !(dir_fl & BCAST1_4))
valid_la = false;
}
if (valid_la && min_len) {
--
2.16.4