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Fix the following crash, seen in dwc/pci-imx6. Unable to handle kernel NULL pointer dereference at virtual address 00000070 pgd = c0004000 [00000070] *pgd=00000000 Internal error: Oops: 805 [#1] SMP ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.10.0-09686-g9e31489 #1 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) task: cb850000 task.stack: cb84e000 PC is at imx6_pcie_probe+0x2f4/0x414 ... While at it, fix the same problem in various drivers instead of waiting for individual crash reports. The change in the imx6 driver was tested with qemu. The changes in other drivers are based on code inspection and have been compile tested only. Fixes: 442ec4c04d12 ("PCI: dwc: all: Split struct pcie_port into host-only and core structures") Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> # designware-plat Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
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.