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Luca Ceresoli b402753693 Revert "drm/display: bridge_connector: get/put the stored bridges" 
This reverts commit 2be300f9a0.

The commit being reverted moved all the bridge_connector->bridge_*
assignments to just before the final successful return in order to handle
the bridge refcounting in a clean way.

This introduced a bug, because a bit before the successful return
drmm_connector_hdmi_cec_register() is called, which calls funcs->init()
which is drm_bridge_connector_hdmi_cec_init() which needs
bridge_connector->bridge_hdmi_cec to be set.

The reported bug may be fixed in a relatively simple way, but other similar
patterns are potentially present, so just revert the offending commit. A
different approach will be implemented.

Fixes: 2be300f9a0 ("drm/display: bridge_connector: get/put the stored bridges")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Closes: https://lore.kernel.org/all/336fbfdd-c424-490e-b5d1-8ee84043dc80@samsung.com/
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Closes: https://lore.kernel.org/r/CA+G9fYuKHp3QgPKjgFY3TfkDdh5Vf=Ae5pCW+eU41Bu=D7th2g@mail.gmail.com
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> # db410c
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://patch.msgid.link/20251017-drm-bridge-alloc-getput-bridge-connector-fix-hdmi_cec-v2-1-667abf6d47c0@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
History 2025-11-03 12:17:54 +01:00
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README 

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.