On Thu, Aug 04, 2016 at 07:59:41PM +0900, Yoshihiro Shimoda wrote: > The USB-DMAC's interruption happens even if the CHCR.DE is not set to 1 > because CHCR.NULLE is set to 1. So, this driver should call > usb_dmac_isr_transfer_end() if the DE bit is set to 1 only. Otherwise, > the desc is possible to be NULL in the usb_dmac_isr_transfer_end(). Applied, thanks -- ~Vinod