The patch below does not apply to the 4.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 1f2c450185b7b8d50d38d37ee30387ff4cd337f8 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Date: Wed, 3 Feb 2016 19:30:31 -0200
Subject: [PATCH] [media] vb2-core: call threadio->fnc() if
!VB2_BUF_STATE_ERROR
changeset 70433a152f0 ("media: videobuf2: Refactor vb2_fileio_data
and vb2_thread") broke videobuf2-dvb.
The root cause is that, instead of calling threadio->fnc() for
all types of events except for VB2_BUF_STATE_ERROR, it was calling
it only for VB2_BUF_STATE_DONE.
With that, the DVB thread were never called.
Cc: stable@xxxxxxxxxxxxxxx # Kernel >= 4.3
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index b53e42c329cb..ff8953ae52d1 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -2742,7 +2742,7 @@ static int vb2_thread(void *data)
break;
try_to_freeze();
- if (vb->state == VB2_BUF_STATE_DONE)
+ if (vb->state != VB2_BUF_STATE_ERROR)
if (threadio->fnc(vb, threadio->priv))
break;
call_void_qop(q, wait_finish, q);
--
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