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This patch fixes an issue that unexpected behavior happens when both the interrupt handler and renesas_usb3_ep_enable() are called. In this case, since usb3_start_pipen() checked the usb3_ep->started, but the flags was not protected. So, this patch protects the flag by usb3->lock. Since renesas_usb3_ep_enable() for EP0 will be not called, this patch doesn't take care of usb3_start_pipe0(). Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.