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41dd1f2fac
When v4l2_subdev_call(sensor, s_stream, 1) fails atomisp_start_streaming() was not properly returning the buffer ownership back to the videobuf2-core code, resulting in: [ 1318.153447] ------------[ cut here ]------------ [ 1318.153499] WARNING: CPU: 0 PID: 4856 at drivers/media/common/videobuf2/videobuf2-core.c:1803 vb2_start_streaming+0xcb/0x160 [videobuf2_common] ... [ 1318.154551] Call Trace: [ 1318.154560] <TASK> [ 1318.154571] ? __warn.cold+0xb7/0x14a [ 1318.154591] ? vb2_start_streaming+0xcb/0x160 [videobuf2_common] [ 1318.154617] ? report_bug+0xe0/0x180 [ 1318.154640] ? handle_bug+0x5e/0xa0 [ 1318.154652] ? exc_invalid_op+0x14/0x70 [ 1318.154665] ? asm_exc_invalid_op+0x16/0x20 [ 1318.154697] ? vb2_start_streaming+0xcb/0x160 [videobuf2_common] [ 1318.154723] ? vb2_start_streaming+0x70/0x160 [videobuf2_common] [ 1318.154748] vb2_core_streamon+0xa2/0x100 [videobuf2_common] The sensor streamon call is the last thing that atomisp_start_streaming() does and it was failing to undo all of the previous steps in general. Refactor atomisp_stop_streaming() into an atomisp_stop_stream() helper and call that on sensor streamon failure to properly clean things up. Signed-off-by: Hans de Goede <hansg@kernel.org> Reviewed-by: Andy Shevchenko <andy@kernel.org> Link: https://lore.kernel.org/r/20250505210008.152659-3-hdegoede@redhat.com Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.