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authorBumyong Lee <[email protected]>2021-05-07 15:36:47 +0900
committerVinod Koul <[email protected]>2021-05-10 21:38:46 +0530
commit4ad5dd2d7876d79507a20f026507d1a93b8fff10 (patch)
tree0d3e5dcbe92f4216aa0580cd60ecc6d5dea77a60
parent17866bc6b2ae1c3075c9fe7bcbeb8ea50eb4c3fc (diff)
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 <[email protected]> Signed-off-by: Bumyong Lee <[email protected]> Signed-off-by: Chanho Park <[email protected]> Link: https://lore.kernel.org/r/[email protected] Fixes: f6f2421c0a1c ("dmaengine: pl330: Merge dma_pl330_dmac and pl330_dmac structs") Cc: [email protected] Signed-off-by: Vinod Koul <[email protected]>
-rw-r--r--drivers/dma/pl330.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index fd8d2bc3be9f..110de8a60058 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2694,13 +2694,15 @@ static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic(
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,
@@ -2710,7 +2712,7 @@ static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic(
list_move_tail(&first->node, &pl330->desc_pool);
- spin_unlock_irqrestore(&pl330->pool_lock, flags);
+ spin_unlock_irqrestore(&pl330->pool_lock, iflags);
return NULL;
}