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897e13a8f9
When dwc3_resume_common() returns an error, runtime pm is left in
suspended and disabled state in dwc3_resume(). Since the device
is suspended, its parent devices (like the power domain or glue
driver) could also be suspended and may have released resources
that dwc requires. Consequently, calling dwc3_suspend_common() in
this situation could result in attempts to access unclocked or
unpowered registers.
To prevent these problems, runtime PM should always be re-enabled,
even after failed resume attempts. This ensures that
dwc3_suspend_common() is skipped in such cases.
Fixes: 68c26fe581 ("usb: dwc3: set pm runtime active before resume common")
Cc: stable@vger.kernel.org
Signed-off-by: Roy Luo <royluo@google.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20240913232145.3507723-1-royluo@google.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 reStructuredText 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.