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The commit4ac53087d6("usb: xhci: plat: Create both HCDs before adding them") move add hcd to the end of probe, this cause hcc_params uninitiated, because xHCI driver sets hcc_params in xhci_gen_setup() called from usb_add_hcd(). This patch checks the Maximum Primary Stream Array Size in the hcc_params register after add primary hcd. Signed-off-by: William wu <william.wu@rock-chips.com> Acked-by: Roger Quadros <rogerq@ti.com> Cc: stable <stable@vger.kernel.org> # 4.2+ Fixes:4ac53087d6("usb: xhci: plat: Create both HCDs before adding them") Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.