Hello Basavaraj Natikar, This is a semi-automatic email about new static checker warnings. Commit 656543989457 ("dmaengine: ptdma: Utilize the AE4DMA engine's multi-queue functionality") from Feb 3, 2025, leads to the following Smatch complaint: drivers/dma/amd/ptdma/ptdma-dmaengine.c:358 pt_cmd_callback_work() warn: variable dereferenced before check 'desc' (see line 345) drivers/dma/amd/ptdma/ptdma-dmaengine.c 344 345 dma_chan = desc->vd.tx.chan; ^^^^^^ desc is dereferenced 346 chan = to_pt_chan(dma_chan); 347 348 if (err == -EINPROGRESS) 349 return; 350 351 tx_desc = &desc->vd.tx; 352 vd = &desc->vd; 353 354 if (err) 355 desc->status = DMA_ERROR; 356 357 spin_lock_irqsave(&chan->vc.lock, flags); 358 if (desc) { ^^^^ So this check is too late. 359 if (desc->status != DMA_COMPLETE) { 360 if (desc->status != DMA_ERROR) regards, dan carpenter