From 7b5f35a73cf0761ac189d35c0c40d86735645e03 Mon Sep 17 00:00:00 2001
From: Robin Gong <yibin.gong@nxp.com>
Date: Wed, 7 Jul 2021 01:59:11 +0800
Subject: [PATCH] LF-4141: dmaengine: fsl-edma-v3: fix Coverity issue
Fix 'Coverity Issue:16750978 Dereference null return value'
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
drivers/dma/fsl-edma-v3.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/dma/fsl-edma-v3.c b/drivers/dma/fsl-edma-v3.c
index 948d909860838a..1c1434a3ceaf03 100644
--- a/drivers/dma/fsl-edma-v3.c
+++ b/drivers/dma/fsl-edma-v3.c
@@ -1025,6 +1025,9 @@ static int fsl_edma3_probe(struct platform_device *pdev)
int len, chans;
int ret, i;
+ if (!of_id)
+ return -EINVAL;
+
ret = of_property_read_u32(np, "dma-channels", &chans);
if (ret) {
dev_err(&pdev->dev, "Can't get dma-channels.\n");
--
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