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The calls rockchip_pd_power makes to rockchip_pmu_set_idle_request lack any return error handling, causing device drivers to incorrectly believe the hardware idle requests succeed when they may have failed. This leads to software possibly accessing hardware that is powered off and the subsequent SError panic that follows. Add error checking and return errors to the calling function to prevent such crashes. gst-launch-1.0 videotestsrc num-buffers=2000 ! v4l2jpegenc ! fakesink Setting pipeline to PAUSED ...er-x64 Pipeline is PREROLLING ... Redistribute latency... rockchip-pm-domain ff100000.syscon:power-controller: failed to get ack on domain 'hevc', val=0x98260 SError Interrupt on CPU2, code 0x00000000bf000002 -- SError Signed-off-by: Peter Geis <pgwipeout@gmail.com> Link: https://lore.kernel.org/r/20241214215802.23989-1-pgwipeout@gmail.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Link: https://lore.kernel.org/r/20250220-rk3588-gpu-pwr-domain-regulator-v6-5-a4f9c24e5b81@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> |
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| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.