On Mon, Aug 21, 2017 at 06:31:57AM +0000, Kuninori Morimoto wrote: > > From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> > > Anton Volkov noticed that engine->dev is NULL before > of_dma_controller_register() in probe. > Thus there might be a NULL pointer dereference in > rcar_dmac_chan_start_xfer while accessing chan->chan.device->dev which > is equal to (&dmac->engine)->dev. > On same reason, same and similar things will happen if we didn't > initialize all necessary data before calling register irq function. > To be more safety code, this patch initialize all necessary data > before calling register irq function. Applied after adding subsytem name, thanks -- ~Vinod
