[Linux-stm32] [PATCH] dma: stm32-mdma: Fix a possible null-pointer dereference in stm32_mdma_irq_handler()

[Vinod Koul]

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