[media] cec: sanitize msg.flags
The CEC_MSG_FL_REPLY_TO_FOLLOWERS message flag only makes sense for transmitted
messages where you want to wait for the reply.
Clear the flag in all other cases.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/drivers/media/cec/cec-api.c b/drivers/media/cec/cec-api.c
index d4bc4ee..597fbb6 100644
--- a/drivers/media/cec/cec-api.c
+++ b/drivers/media/cec/cec-api.c
@@ -197,7 +197,6 @@ static long cec_transmit(struct cec_adapter *adap, struct cec_fh *fh,
(msg.len == 1 || msg.msg[1] != CEC_MSG_CDC_MESSAGE))
return -EINVAL;
- msg.flags &= CEC_MSG_FL_REPLY_TO_FOLLOWERS;
mutex_lock(&adap->lock);
if (!adap->is_configured)
err = -ENONET;
@@ -282,6 +281,7 @@ static long cec_receive(struct cec_adapter *adap, struct cec_fh *fh,
err = cec_receive_msg(fh, &msg, block);
if (err)
return err;
+ msg.flags = 0;
if (copy_to_user(parg, &msg, sizeof(msg)))
return -EFAULT;
return 0;