From d0b66fdfd3c5c31764740f6ffe5a345549d6af97 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 3 Feb 2012 05:12:18 -0300 Subject: [PATCH] [media] ivtv: only start streaming in poll() if polling for input Signed-off-by: Hans Verkuil Acked-by: Andy Walls Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/ivtv/ivtv-fileops.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/ivtv/ivtv-fileops.c b/drivers/media/video/ivtv/ivtv-fileops.c index c9663e885b9f..9ff69b5a87e2 100644 --- a/drivers/media/video/ivtv/ivtv-fileops.c +++ b/drivers/media/video/ivtv/ivtv-fileops.c @@ -746,8 +746,9 @@ unsigned int ivtv_v4l2_dec_poll(struct file *filp, poll_table *wait) return res; } -unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table * wait) +unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table *wait) { + unsigned long req_events = poll_requested_events(wait); struct ivtv_open_id *id = fh2id(filp->private_data); struct ivtv *itv = id->itv; struct ivtv_stream *s = &itv->streams[id->type]; @@ -755,7 +756,8 @@ unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table * wait) unsigned res = 0; /* Start a capture if there is none */ - if (!eof && !test_bit(IVTV_F_S_STREAMING, &s->s_flags)) { + if (!eof && !test_bit(IVTV_F_S_STREAMING, &s->s_flags) && + (req_events & (POLLIN | POLLRDNORM))) { int rc; rc = ivtv_start_capture(id); -- 2.39.5