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This is a DT-only driver, so the only way to call rcar_pcie_probe() is to match an entry in rcar_pcie_of_match[], so of_id cannot be NULL. Furthermore, of_id->data can only be NULL if an rcar_pcie_of_match[] entry has a NULL .data member. That's a driver defect, and we don't want to return -EINVAL, which is easy to ignore. We'd rather take the NULL pointer dereference so we notice the problem and fix it. Use of_device_get_match_data() to retrieve the hw_init_fn pointer. No functional change intended. Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.