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27 lines
967 B
Diff
27 lines
967 B
Diff
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From 0059c7ed6c11254f214a07357bbf87296cde446f Mon Sep 17 00:00:00 2001
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From: Robin Gong <yibin.gong@nxp.com>
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Date: Wed, 7 Nov 2018 22:19:07 +0800
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Subject: [PATCH] MLK-20205-1: dmaengine: fsl-edma-v3: fix NULL pointer
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dereference
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Fix 'null pointer dereferences issue' reported by coverity(CID-1477441).
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Signed-off-by: Robin Gong <yibin.gong@nxp.com>
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Reviewed-by: Anson Huang <Anson.Huang@nxp.com>
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(cherry picked from commit 5343c0018af0af2eb3bb90c5a75e765b851a2c12)
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---
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drivers/dma/fsl-edma-v3.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/dma/fsl-edma-v3.c
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+++ b/drivers/dma/fsl-edma-v3.c
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@@ -419,7 +419,7 @@ static enum dma_status fsl_edma3_tx_stat
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if (fsl_chan->edesc && cookie == fsl_chan->edesc->vdesc.tx.cookie)
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txstate->residue = fsl_edma3_desc_residue(fsl_chan, vdesc,
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true);
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- else if (vdesc)
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+ else if (fsl_chan->edesc && vdesc)
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txstate->residue = fsl_edma3_desc_residue(fsl_chan, vdesc,
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false);
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else
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