Date: Fri, 18 Jul 2014 11:58:33 +1000 from: matthew green <m...@eterna.com.au>
"Taylor R Campbell" writes: > Fix usb task queue locking. why does this take the lock and then use atomic operations? Reading task->queue is not covered by a lock: until you know what it is you don't know what lock to hold. usb_task_rem needs to read it and use it without holding any queue's lock, and by the time usb_task_rem takes a lock, the value it read may be out of date. such strange usage should have a comment.. Better yet, we should have a better task queue system. More on that soon, perhaps...
