On 06/29/2018 09:01 AM, Hans Verkuil wrote:
> Hi Ezequiel,
>
> I added support for this to a codec and I discovered that we are missing a
> 'name'
> argument to v4l2_m2m_register_media_controller(): a typical codec driver has
> two
> m2m video nodes: one for encoding, one for decoding. That work
Hi Ezequiel,
I added support for this to a codec and I discovered that we are missing a
'name'
argument to v4l2_m2m_register_media_controller(): a typical codec driver has two
m2m video nodes: one for encoding, one for decoding. That works fine, except
that
the names of the source, sink and proc
Hi Hans,
2015-07-20 10:58 GMT+03:00 Hans Verkuil :
>
> Since vb2_fop_mmap doesn't take the lock, neither should v4l2_m2m_fop_mmap.
>
> Signed-off-by: Hans Verkuil
[snip]
Tested-by: Mikhail Ulyanov
--
W.B.R, Mikhail.
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The v4l2_m2m_fop_mmap function takes the core mutex, but this will result in a
potential
circular locking dependency:
[ 262.517164] ==
[ 262.517166] [ INFO: possible circular locking dependency detected ]
[ 262.517169] 4.2.0-rc2-koryphon #844
The first time b is used, it is assigned to the first element of the rdy_queue
list. There is no need to set it to NULL before.
Signed-off-by: Philipp Zabel
---
drivers/media/v4l2-core/v4l2-mem2mem.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/v4l2-core/
Two small patches, one fix and one more or less cosmetic patch for the
v4l2 mem2mem framework.
Comments welcome.
Thanks,
Sascha
Sascha Hauer (2):
media v4l2-mem2mem: Use list_first_entry
media v4l2-mem2mem: fix src/out
