From: Hans Verkuil <hans.verkuil@xxxxxxxxx> The CEC_TRANSMIT ioctl now returns -EPERM if an attempt is made to transmit a message for an unconfigured adapter (i.e. userspace never called CEC_ADAP_S_LOG_ADDRS). This differentiates this case from when LAs are configured, but no physical address is set. In that case -ENONET is returned. Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> --- drivers/media/cec/cec-api.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/cec/cec-api.c b/drivers/media/cec/cec-api.c index 627cdf7b12d1..cea350ea2a52 100644 --- a/drivers/media/cec/cec-api.c +++ b/drivers/media/cec/cec-api.c @@ -198,7 +198,9 @@ static long cec_transmit(struct cec_adapter *adap, struct cec_fh *fh, return -EINVAL; mutex_lock(&adap->lock); - if (adap->is_configuring) + if (adap->log_addrs.num_log_addrs == 0) + err = -EPERM; + else if (adap->is_configuring) err = -ENONET; else if (!adap->is_configured && (msg.msg[0] != 0xf0 || msg.reply)) err = -ENONET; -- 2.11.0
