On Thu, 19 Apr 2012, Yair E wrote: > Hi, > While browsing the code I noticed that usb_init_urb() zeroes out the > entire URB, including urb_list. > urb_unlink() calls list_del_init which expects an initialized list, There is no urb_unlink() routine. Are you referring to usb_hcd_unlink_urb_from_ep()? > but I could not locate where INIT_LIST_HEAD takes place (except upon > error in usb_hcd_submit_urb()). It doesn't take place at all. urb->urb_list is set by the list_add_tail() call in usb_hcd_link_urb_to_ep(). > Is this normal? In this case it's okay because usb_hcd_unlink_urb_from_ep() never gets called unless urb->urb_list has already been added to the proper list by usb_hcd_link_urb_to_ep(). Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
