|USB_SG_CANCEL(9)||USB Core APIs||USB_SG_CANCEL(9)|
usb_sg_cancel - stop scatter/gather i/o issued by usb_sg_wait
void usb_sg_cancel(struct usb_sg_request * io);
This stops a request after it has been started by usb_sg_wait. It can also prevents one initialized by usb_sg_init from starting, so that call just frees resources allocated to the request.
|January 2017||Kernel Hackers Manual 4.8.|