On Tue, Dec 17, 2019 at 05:50:23PM +0800, Jia-Ju Bai wrote: > In musb_handle_intr_connect(), musb->hcd should be non-null, > so the check of musb->hcd on line 783 could be dropped. Have you verified that this is always the case? How did you do that? thanks, greg k-h