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Manivannan Sadhasivam
24777bac4a
Commit50b040ef37("PCI/pwrctl: only call of_platform_populate() if CONFIG_OF is enabled") added the CONFIG_OF guard for the of_platform_populate() API. But it missed the fact that the CONFIG_OF platforms can also run on ACPI without devicetree (so dev.of_node will be NULL). In those cases, of_platform_populate() will fail with below error messages as seen on the Ampere Altra box: pci 000c:00:01.0: failed to populate child OF nodes (-22) pci 000c:00:02.0: failed to populate child OF nodes (-22) Fix this by checking for the existence of 'dev.of_node' before calling the of_platform_populate() API. This also warrants the removal of CONFIG_OF check, since dev_of_node() helper will return NULL if CONFIG_OF is not enabled. While at it, let's also use dev_of_node() to pass device OF node pointer to of_platform_populate(). Fixes:50b040ef37("PCI/pwrctl: only call of_platform_populate() if CONFIG_OF is enabled") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Closes: https://lore.kernel.org/linux-arm-msm/CAHk-=wjcO_9dkNf-bNda6bzykb5ZXWtAYA97p7oDsXPHmMRi6g@mail.gmail.com Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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.