[media] cec: don't Feature Abort msgs from Unregistered

Feature Abort shouldn't be sent in reply to messages from Unregistered,
since that would make it a broadcast message.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c
index 46b7da6df9b5ceb8b537b63e2180ea611f728cc6..25d0a835921fe78869b6a099f98876ae85c2f128 100644 (file)
--- a/drivers/media/cec/cec-adap.c
+++ b/drivers/media/cec/cec-adap.c
@@ -1615,6 +1615,9 @@ static int cec_feature_abort_reason(struct cec_adapter *adap,
         */
        if (msg->msg[1] == CEC_MSG_FEATURE_ABORT)
                return 0;
+       /* Don't Feature Abort messages from 'Unregistered' */
+       if (cec_msg_initiator(msg) == CEC_LOG_ADDR_UNREGISTERED)
+               return 0;
        cec_msg_set_reply_to(&tx_msg, msg);
        cec_msg_feature_abort(&tx_msg, msg->msg[1], reason);
        return cec_transmit_msg(adap, &tx_msg, false);