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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2014-08-25 08:57:59 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-09-21 20:12:49 -0300 |
| commit | 12561ad622de254d69ec1baaf6734afc602a2c30 (patch) | |
| tree | 32c93ebb4cf508eaf4fe1b19a26379b683fdcd34 /drivers/media/v4l2-core/videobuf-core.c | |
| parent | 825fd08dbbd830b3f42e0f014f4c9f6eba5c434c (diff) | |
[media] videobuf2-core: take mmap_sem before calling __qbuf_userptr
(Changes since v2: dropped local variable as suggested by Laurent)
Commit f035eb4e976ef5a059e30bc91cfd310ff030a7d3 (videobuf2: fix lockdep warning)
unfortunately removed the mmap_sem lock that is needed around the call to
__qbuf_userptr. Amazingly nobody noticed this (especially me as the author)
until Jan Kara pointed this out to me.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Jan Kara <jack@suse.cz>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/v4l2-core/videobuf-core.c')
0 files changed, 0 insertions, 0 deletions