Commits
Ming Lei committed a7a6b79bc5b
USB: serial: enable async suspend for usb serial port device Usb serial port device is child of its usb interface device, so we can enable async suspend of usb serial port device to speedup system suspend. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>