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When receiving a disconnect event from the UDC, the mass storage function driver currently runs the handle_exception() routine asynchronously. For UDCs that support runtime PM, there is a possibility the UDC is already suspended by the time the do_set_interface() is executed. This can lead to HW register access while the UDC is already suspended. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com> Link: https://lore.kernel.org/r/1635365407-31337-3-git-send-email-quic_wcheng@quicinc.com 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.