dmaengine: stm32-dma: mark pending descriptor complete in terminate_all

To prevent accidental repeated completion, mark pending descriptor
complete in terminate_all. It can be the case when terminate_all is called
while no end of transfer interrupt occurs.

Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20211011094259.315023-2-amelie.delaunay@foss.st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

drivers/dma/stm32-dma.c

@@ -497,6 +497,7 @@ static int stm32_dma_terminate_all(struct dma_chan *c)
 	spin_lock_irqsave(&chan->vchan.lock, flags);
 
 	if (chan->desc) {
+		dma_cookie_complete(&chan->desc->vdesc.tx);
 		vchan_terminate_vdesc(&chan->desc->vdesc);
 		if (chan->busy)
 			stm32_dma_stop(chan);