dmaengine: pl330: fix wrong usage of spinlock flags in dma_cyclc

flags varible which is the input parameter of pl330_prep_dma_cyclic()
should not be used by spinlock_irq[save/restore] function.

Signed-off-by: Jongho Park <[e-mail]>
Signed-off-by: Bumyong Lee <[e-mail]>
Signed-off-by: Chanho Park <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Fixes: f6f2421c0a1c ("dmaengine: pl330: Merge dma_pl330_dmac and pl330_dmac structs")
Cc: [e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/dma/pl330.c

···
 	for (i = 0; i < len / period_len; i++) {
 		desc = pl330_get_desc(pch);
 		if (!desc) {
+			unsigned long iflags;
+
 			dev_err(pch->dmac->ddma.dev, "%s:%d Unable to fetch desc\n",
 				__func__, __LINE__);
 
 			if (!first)
 				return NULL;
 
-			spin_lock_irqsave(&pl330->pool_lock, flags);
+			spin_lock_irqsave(&pl330->pool_lock, iflags);
 
 			while (!list_empty(&first->node)) {
 				desc = list_entry(first->node.next,
···
 
 			list_move_tail(&first->node, &pl330->desc_pool);
 
-			spin_unlock_irqrestore(&pl330->pool_lock, flags);
+			spin_unlock_irqrestore(&pl330->pool_lock, iflags);
 
 			return NULL;
 		}