In musb_remove() cancel_delayed_work_sync(&musb->irq_work) is called which flush the irq_work work queue. After cancel delayed work, musb_remove() call musb_gadget_cleanup->usb_del_gadget_udc->usb_del_gadget ->usb_gadget_remove_driver->usb_gadget_udc_stop->udc ->gadget->ops->udc_stop(udc->gadget); Where musb_gadget_stop() call "schedule_delayed_work(&musb->irq_work, 0)” which is already cancel/flush. So remove the schedule_delayed_work(&musb->irq_work, 0); from musb_gadget_stop function. Signed-off-by: Saurav Girepunje <saurav.girepunje@gmail.com> Link: https://lore.kernel.org/r/YqDnxkWZV2KfZh5q@Sauravs-MacBook-Air.local 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.
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