On Wed, Mar 13, 2013 at 11:15 PM, Oliver Neukum <[email protected]> wrote: > On Wednesday 13 March 2013 23:02:32 Ming Lei wrote: >> On Wed, Mar 13, 2013 at 10:55 PM, Oliver Neukum <[email protected]> wrote: >> > >> > But it will be run when the next read() call is made. The question is what >> > happens >> >> When next read() is called, looks it won't be reached if >> 'ongoing_read' is set, and >> it needn't run without ongoing URBs. > > If ongoing_read is not set, IO may be started and its completion would > not be waited for, as the IO that had been started, but wasn't waited > for due to an interrupt, has completed.
OK, got it, so how about INIT_COMPLETION(&dev->bulk_in_completion) in case of !ongoing_read? That means replacing 'if (!dev->processed_urb)' with INIT_COMPLETION(&dev->bulk_in_completion). Thanks, -- Ming Lei -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
