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Ricardo Ribalda b93876845c [media] media: vb2: Fix regression on poll() for RW mode 
When using a device is read/write mode, vb2 does not handle properly the
first select/poll operation.

The reason for this, is that when this code has been refactored, some of
the operations have changed their order, and now fileio emulator is not
started.

The reintroduced check to the core is enabled by a quirk flag, that
avoids this check by other subsystems like DVB.

Fixes: 49d8ab9fea ("media] media: videobuf2: Separate vb2_poll()")

Reported-by: Dimitrios Katsaros <patcherwork@gmail.com>
Cc: Junghak Sung <jh1009.sung@samsung.com>
Cc: <stable@vger.kernel.org>      # for v4.5 and up
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
 		2016-04-25 10:21:23 -03:00
..
blackfin [media] v4l2: blackfin: select proper pinctrl state in ppi_set_params if CONFIG_PINCTRL is enabled 2014-07-26 17:15:16 -03:00
davinci [media] media: videobuf2: Restructure vb2_buffer 2015-10-01 09:04:43 -03:00
drv-intf [media] media, sound: tea575x: constify snd_tea575x_ops structures 2015-12-03 11:26:45 -02:00
i2c [media] tvp5150: move input definition header to dt-bindings 2016-02-11 11:10:59 -02:00
i2c-addr.h
…
lirc.h [media] bz#75751: Move internal header file lirc.h to uapi/ 2015-11-17 06:47:43 -02:00
lirc_dev.h [media] lirc_dev.h: Make checkpatch happy 2015-10-05 13:50:42 -03:00
media-device.h [media] media: Always keep a graph walk large enough around 2016-03-03 12:17:28 -03:00
media-devnode.h [media] media-devnode.h: document the remaining struct/functions 2016-01-11 12:19:13 -02:00
media-entity.h [media] media-entity: include linux/bug.h for WARN_ON 2016-03-03 09:54:36 -03:00
rc-core.h [media] rc-core: allow calling rc_open with device not initialized 2016-03-03 06:16:14 -03:00
rc-map.h [media] media: rc: improve RC_BIT_ constant definition 2015-11-19 11:39:58 -02:00
soc_camera.h [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2 2015-10-01 08:48:18 -03:00
tuner-types.h [media] DocBook: add documentation for tuner-types.h 2015-10-05 11:37:15 -03:00
tuner.h [media] v4l2-mc.h: move tuner PAD definitions to this new header 2016-02-01 07:19:44 -02:00
tveeprom.h [media] DocBook: Document tveeprom.h 2015-10-05 13:49:02 -03:00
v4l2-async.h [media] Docbook: Fix comments at v4l2-async.h 2015-08-22 05:17:27 -03:00
v4l2-clk.h [media] v4l2-clk: add new definition: V4L2_CLK_NAME_SIZE 2015-11-17 15:19:11 -02:00
v4l2-common.h [media] v4l2-common: move v4l2_ctrl_check to cx2341x 2014-11-25 08:25:36 -02:00
v4l2-ctrls.h [media] v4l2-ctrls: remove unclaimed v4l2_ctrl_add_ctrl() interface 2016-02-10 09:34:00 -02:00
v4l2-dev.h [media] media: v4l-core add enable/disable source common interfaces 2016-02-27 08:33:29 -03:00
v4l2-device.h [media] v4l2-core: remove the old .ioctl BKL replacement 2015-03-02 17:06:56 -03:00
v4l2-dv-timings.h [media] v4l2-dv-timings: add new arg to v4l2_match_dv_timings 2015-12-03 11:26:14 -02:00
v4l2-event.h [media] v4l2-event.h: fix comments and add to DocBook 2015-08-22 09:05:52 -03:00
v4l2-fh.h [media] V4L: Add mem2mem ioctl and file operation helpers 2013-12-04 15:34:24 -02:00
v4l2-flash-led-class.h [media] Docbook: fix comments at v4l2-flash-led-class.h 2015-08-22 05:28:44 -03:00
v4l2-image-sizes.h [media] media: v4l2-image-sizes.h: correct the SVGA height definition 2014-12-04 13:56:56 -02:00
v4l2-ioctl.h [media] v4l2: add support for SDR transmitter 2015-10-20 15:40:50 -02:00
v4l2-mc.h [media] v4l2-mc.h: fix yet more compiler errors 2016-03-04 07:56:43 -03:00
v4l2-mediabus.h [media] v4l2-mediabus: Add to DocBook 2015-08-22 09:05:55 -03:00
v4l2-mem2mem.h [media] media: videobuf2: Restructure vb2_buffer 2015-10-01 09:04:43 -03:00
v4l2-of.h [media] v4l2-of: fix compiler errors if CONFIG_OF is undefined 2015-04-28 08:33:45 -03:00
v4l2-subdev.h [media] v4l2-subdev: add registered_async subdev core operation 2016-02-10 09:37:13 -02:00
videobuf-core.h treewide: fix typos in comment blocks 2015-08-07 14:46:24 +02:00
videobuf-dma-contig.h [media] videobuf-dma-contig: remove support for cached mem 2013-04-25 09:50:19 -03:00
videobuf-dma-sg.h [media] videobuf: make unused exported functions static 2015-01-27 10:01:33 -02:00
videobuf-dvb.h [media] media: remove emacs editor variables 2014-12-22 17:52:20 -02:00
videobuf-vmalloc.h V4L/DVB: videobuf: add ext_lock argument to the queue init functions 2010-10-21 01:06:14 -02:00
videobuf2-core.h [media] media: vb2: Fix regression on poll() for RW mode 2016-04-25 10:21:23 -03:00
videobuf2-dma-contig.h ARM: 8508/2: videobuf2-dc: Let drivers specify DMA attrs 2016-02-11 15:33:38 +00:00
videobuf2-dma-sg.h [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2 2015-10-01 08:48:18 -03:00
videobuf2-dvb.h [media] add media controller support to videobuf2-dvb 2016-02-10 07:23:41 -02:00
videobuf2-memops.h [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2 2015-10-01 08:48:18 -03:00
videobuf2-v4l2.h [media] media: videobuf2: Move vb2_fileio_data and vb2_thread to core part 2015-12-18 13:58:09 -02:00
videobuf2-vmalloc.h [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2 2015-10-01 08:48:18 -03:00
vsp1.h [media] v4l: vsp1: Implement atomic update for the DRM driver 2016-02-19 09:31:19 -02:00