On Thu, 29 May 2014, Huang Rui wrote: > Currently, in usb_sg_wait routine there isn't a timeout on waiting for > completion signal. When using TEST 5 -> 8 at usbtest module to verify > a new device controller with gadget zero, it would be hang on this > phase and this routine waits forever. Why did it hang? That's the real problem; you should fix that instead of adding a timeout. > So it should add a timeout about > 10s to export a TIMEOUT error to return. What makes you think 10 seconds is a good timeout value? Sorry, this is not acceptable. Any timeout value you specify has to work for _all_ places that call this routine. 10 minutes might be okay. 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
