V4L/DVB (9495): cx88-blackbird: bugfix: cx88-blackbird-poll-fix

Starts encoder not only on a read call but also on a poll command.

Signed-off-by: Frederic CAND <frederic.cand@anevia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 078be63..ae77450 100644 (file)
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -1158,6 +1158,10 @@ static unsigned int
 mpeg_poll(struct file *file, struct poll_table_struct *wait)
 {
        struct cx8802_fh *fh = file->private_data;
+       struct cx8802_dev *dev = fh->dev;
+
+       if (!dev->mpeg_active)
+               blackbird_start_codec(file, fh);
 
        return videobuf_poll_stream(file, &fh->mpegq, wait);
 }