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authorKrzysztof Kozlowski <krzk@kernel.org>2020-06-11 14:17:40 +0200
committerVinod Koul <vkoul@kernel.org>2020-06-24 13:05:01 +0530
commitbfc1d5bf261df81155935aac10b721f4d5a70849 (patch)
tree98ae386f73d4b7aebb367d4eb876ccb09771abae /drivers/dma/fsl-edma-common.c
parent0b8975bdc0cc5310d48d9bdd871cefebe1f94c99 (diff)
dmaengine: fsl-edma: Add lockdep assert for exported function
Add lockdep assert for an exported function expected to be called under spin lock. Since this function is called in different modules, the lockdep assert will be self-documenting note about need for locking. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Robin Gong <yibin.gong@nxp.com> Link: https://lore.kernel.org/r/1591877861-28156-1-git-send-email-krzk@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/fsl-edma-common.c')
-rw-r--r--drivers/dma/fsl-edma-common.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index 5697c3622699..4550818cca4a 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -589,6 +589,8 @@ void fsl_edma_xfer_desc(struct fsl_edma_chan *fsl_chan)
{
struct virt_dma_desc *vdesc;
+ lockdep_assert_held(&fsl_chan->vchan.lock);
+
vdesc = vchan_next_desc(&fsl_chan->vchan);
if (!vdesc)
return;