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61bd8fb37d
linux/drivers/media/v4l2-core
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Hans Verkuil 61bd8fb37d [media] vb2: if bytesused is 0, then fill with output buffer length 
The application should really always fill in bytesused for output
buffers, unfortunately the vb2 framework never checked for that.

So for single planar formats replace a bytesused of 0 by the length
of the buffer, and for multiplanar format do the same if bytesused is
0 for ALL planes.

This seems to be what the user really intended if v4l2_buffer was
just memset to 0.

I'm afraid that just checking for this and returning an error would
break too many applications. Quite a few drivers never check for bytesused
at all and just use the buffer length instead.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-04-16 18:43:13 -03:00
..
Kconfig [media] omap24xx/tcm825x: move to staging for future removal 2013-12-20 13:45:22 -02:00
Makefile [media] omap24xx/tcm825x: move to staging for future removal 2013-12-20 13:45:22 -02:00
tuner-core.c Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2013-11-18 15:50:07 -08:00
v4l2-async.c [media] v4l2-async: Don't use dynamic static allocation 2013-11-08 09:45:43 -02:00
v4l2-clk.c [media] V4L2: add v4l2-clock helpers to register and unregister a fixed-rate clock 2013-10-31 04:31:30 -02:00
v4l2-common.c media: core: Don't use i2c_client->driver 2013-10-03 22:28:23 +02:00
v4l2-compat-ioctl32.c Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-04-04 09:50:07 -07:00
v4l2-ctrls.c [media] v4l: add control for RF tuner PLL lock flag 2014-03-13 10:26:49 -03:00
v4l2-dev.c [media] v4l2: add VIDIOC_G/S_EDID support to the v4l2 core 2014-03-11 10:06:53 -03:00
v4l2-device.c [media] v4l2-device: check if already unregistered 2013-06-21 11:00:51 -03:00
v4l2-dv-timings.c [media] v4l2-dv-timings.c: add the new 4K timings to the list 2014-04-16 18:27:22 -03:00
v4l2-event.c [media] V4L: Add v4l2_event_subdev_unsubscribe() helper function 2013-02-05 15:04:55 -02:00
v4l2-fh.c [media] v4l, smiapp, smiapp-pll, adp1653: Update contact information 2012-11-21 13:34:50 -02:00
v4l2-ioctl.c [media] v4l2-ioctl.c: fix sparse __user-related warnings 2014-04-16 18:21:04 -03:00
v4l2-mem2mem.c [media] V4L: Add mem2mem ioctl and file operation helpers 2013-12-04 15:34:24 -02:00
v4l2-of.c [media] v4l: of: Support empty port nodes 2014-03-11 09:38:49 -03:00
v4l2-subdev.c [media] v4l2: add VIDIOC_G/S_EDID support to the v4l2 core 2014-03-11 10:06:53 -03:00
videobuf2-core.c [media] vb2: if bytesused is 0, then fill with output buffer length 2014-04-16 18:43:13 -03:00
videobuf2-dma-contig.c dma-buf: avoid using IS_ERR_OR_NULL 2014-02-07 14:21:09 -08:00
videobuf2-dma-sg.c Merge branch 'upstream-fixes' into patchwork 2013-12-13 05:04:00 -02:00
videobuf2-memops.c [media] v4l: vb2-dma-contig: let mmap method to use dma_mmap_coherent call 2012-11-25 17:20:25 -02:00
videobuf2-vmalloc.c [media] videobuf2: add gfp_flags 2013-03-21 13:17:51 -03:00
videobuf-core.c [media] v4l: Tell user space we're using monotonic timestamps 2012-12-21 11:20:51 -02:00
videobuf-dma-contig.c [media] Revert "[media] videobuf_vm_{open,close} race fixes" 2014-02-04 06:29:46 -02:00
videobuf-dma-sg.c [media] Revert "[media] videobuf_vm_{open,close} race fixes" 2014-02-04 06:29:46 -02:00
videobuf-dvb.c
videobuf-vmalloc.c [media] Revert "[media] videobuf_vm_{open,close} race fixes" 2014-02-04 06:29:46 -02:00