media: atomisp-ov2680: Fix ov2680_set_fmt()

Browse source

On sets actually store the set (closest) format inside ov2680_device.dev,
so that it also properly gets returned by get_fmt.

This fixes the following problem:

1. App does an VIDIOC_SET_FMT 640x480, calling ov2680_set_fmt()
2. Internal buffers (atomisp_create_pipes_stream()) get allocated
   at 640x480 size by atomisp_set_fmt()
3. ov2680_get_fmt() gets called later on and returns 1600x1200
   since ov2680_device.dev was not updated. So things get configured
   to stream at 1600x1200, but the internal buffers created during
   atomisp_create_pipes_stream() do not get updated in size
4. streaming starts, internal buffers overflow and the entire
   machine freezes eventually due to memory being corrupted

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

...

This commit is contained in:

Hans de Goede 2022-08-13 10:12:39 +02:00 • committed by Mauro Carvalho Chehab

parent a25a64b50e

commit adea153b4f

1 changed files with 1 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

drivers/staging/media/atomisp/i2c/atomisp-ov2680.c

View file