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836bcab506
A reset e.g. calling ep_reset_338x() can happen while endpoints are enabled. The ep_reset_338x() sets ep->desc = NULL to mark endpoint being invalid. A subsequent call of net2280_disable will fail and return -EINVAL to parent function usb_ep_disable(), which will fail, too, and do not set the member ep->enabled = false. See: https://elixir.bootlin.com/linux/v5.0-rc5/source/drivers/usb/gadget/udc/core.c#L139 This fix ignores dp->desc and allows net2280_disable() to succeed. Subsequent calls to usb_ep_enable()/usb_ep_disable() succeeds. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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.