[ Upstream commit 8f8034f493b5eb1ad21ff392fd30c0cf9e71f73f ] If the GEVNTCOUNT indicates events in the event buffer, the driver needs to acknowledge them before the controller can halt. Simply let the interrupt handler acknowledges the remaining event generated by the controller while polling for DSTS.DEVCTLHLT. This avoids disabling irq and taking care of race condition between the interrupt handlers and pullup(). Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/ea306ec93c41ccafbdb5d16404ff3b6eca299613.1650593829.git.Thinh.Nguyen@synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Stable-dep-of: 040f2dbd2010 ("usb: dwc3: gadget: Avoid duplicate requests to enable Run/Stop") Signed-off-by: Sasha Levin <sashal@kernel.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.
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