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commit 9e9ec8d8692a6f64d81ef67d4fb6255af6be684b upstream. K2G forwards the error triggered by a link-down state (e.g., no connected endpoint device) on the system bus for PCI configuration transactions; these errors are reported as an SError at system level, which is fatal and hangs the system. So, apply fix similar to how it was done in the DesignWare Core driver commit15b2390634("PCI: dwc: Add link up check in dw_child_pcie_ops.map_bus()"). Fixes:10a797c6e5("PCI: dwc: keystone: Use pci_ops for config space accessors") Link: https://lore.kernel.org/r/20240524105714.191642-3-s-vadapalli@ti.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com> [kwilczynski: commit log, added tag for stable releases] Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 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.