On 11/30/20 12:23 AM, tangzhenhao wrote:

At line 294 in drivers/lightnvm/pblk-write.c, function pblk_gen_run_ws
is called with actual param GFP_ATOMIC. pblk_gen_run_ws call
mempool_alloc using "GFP_ATOMIC" flag, so mempool_alloc can return
null. So we need to check the return-val of mempool_alloc to avoid
null-ptr-deref bug.

Please line-break at 72/74 chars for future patches, I fixed this one
up. Applied for 5.11, thanks.

-- 
Jens Axboe