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dmaengine: fsl-edma: Add lockdep assert for exported function

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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>
This commit is contained in:
Krzysztof Kozlowski 2020-06-11 14:17:40 +02:00 committed by Vinod Koul
parent 0b8975bdc0
commit bfc1d5bf26
1 changed files with 2 additions and 0 deletions
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2
drivers/dma/fsl-edma-common.c
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@ -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;