mainlining shenanigans
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Maxime Ripard 44fe9f90eb
drm/vc4: hdmi: Only call into DRM framework if registered
Our hotplug handler will currently call the drm_kms_helper_hotplug_event
every time a hotplug interrupt is called.

However, since the device is registered after all the drivers have
finished their bind callback, we have a window between when we install
our interrupt handler and when drm_dev_register() is eventually called
where our handler can run and call drm_kms_helper_hotplug_event but the
device hasn't been registered yet, causing a null pointer dereference.

Fix this by making sure we only call drm_kms_helper_hotplug_event if our
device has been properly registered.

Fixes: f4790083c7 ("drm/vc4: hdmi: Rely on interrupts to handle hotplug")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210707095112.1469670-4-maxime@cerno.tech
2021-07-15 10:50:09 +02:00
arch arm64: dts: qcom: sc7180-trogdor: Move panel under the bridge chip 2021-06-11 12:31:59 -07:00
block block-5.13-2021-05-22 2021-05-22 07:40:34 -10:00
certs
crypto
Documentation dt-bindings: display/panel: Add Innolux EJ030NA 2021-07-14 21:43:48 +01:00
drivers drm/vc4: hdmi: Only call into DRM framework if registered 2021-07-15 10:50:09 +02:00
fs userfaultfd: hugetlbfs: fix new flag usage in error path 2021-05-22 15:09:07 -10:00
include drm/dp: Move panel DP AUX backlight support to drm_dp_helper 2021-07-13 06:38:37 -07:00
init
ipc ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry 2021-05-22 15:09:07 -10:00
kernel Two locking fixes: 2021-05-23 06:30:08 -10:00
lib lib: kunit: suppress a compilation warning of frame size 2021-05-22 15:09:07 -10:00
LICENSES
mm userfaultfd: hugetlbfs: fix new flag usage in error path 2021-05-22 15:09:07 -10:00
net Char/misc driver fixes for 5.13-rc3 2021-05-20 06:31:52 -10:00
samples
scripts kbuild: dummy-tools: adjust to stricter stackprotector check 2021-05-17 12:10:03 +09:00
security trusted-keys: match tpm_get_ops on all return paths 2021-05-12 22:36:37 +03:00
sound Merge tag 'asoc-hdmi-codec-improvements-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-misc-next 2021-06-23 14:32:27 +02:00
tools powerpc fixes for 5.13 #4 2021-05-23 06:07:33 -10:00
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MAINTAINERS drm/bochs: Move to tiny/ 2021-07-05 08:54:44 +02:00
Makefile Linux 5.13-rc3 2021-05-23 11:42:48 -10:00
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 Restructured Text 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.