On 29-07-19, 10:08, Jia-Ju Bai wrote: > In stm32_mdma_irq_handler(), chan is checked on line 1368. > When chan is NULL, it is still used on line 1369: > dev_err(chan2dev(chan), "MDMA channel not initialized\n"); > > Thus, a possible null-pointer dereference may occur. > > To fix this bug, "dev_dbg(mdma2dev(dmadev), ...)" is used instead. Applied after changing subsystem name in patch title to dmaengine: ..., Also while fixing it helps to add Fixes tag, have added Thanks -- ~Vinod
