| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | From 0059c7ed6c11254f214a07357bbf87296cde446f Mon Sep 17 00:00:00 2001 |
| 2 | From: Robin Gong <yibin.gong@nxp.com> |
| 3 | Date: Wed, 7 Nov 2018 22:19:07 +0800 |
| 4 | Subject: [PATCH] MLK-20205-1: dmaengine: fsl-edma-v3: fix NULL pointer |
| 5 | dereference |
| 6 | |
| 7 | Fix 'null pointer dereferences issue' reported by coverity(CID-1477441). |
| 8 | |
| 9 | Signed-off-by: Robin Gong <yibin.gong@nxp.com> |
| 10 | Reviewed-by: Anson Huang <Anson.Huang@nxp.com> |
| 11 | (cherry picked from commit 5343c0018af0af2eb3bb90c5a75e765b851a2c12) |
| 12 | --- |
| 13 | drivers/dma/fsl-edma-v3.c | 2 +- |
| 14 | 1 file changed, 1 insertion(+), 1 deletion(-) |
| 15 | |
| 16 | --- a/drivers/dma/fsl-edma-v3.c |
| 17 | +++ b/drivers/dma/fsl-edma-v3.c |
| 18 | @@ -419,7 +419,7 @@ static enum dma_status fsl_edma3_tx_stat |
| 19 | if (fsl_chan->edesc && cookie == fsl_chan->edesc->vdesc.tx.cookie) |
| 20 | txstate->residue = fsl_edma3_desc_residue(fsl_chan, vdesc, |
| 21 | true); |
| 22 | - else if (vdesc) |
| 23 | + else if (fsl_chan->edesc && vdesc) |
| 24 | txstate->residue = fsl_edma3_desc_residue(fsl_chan, vdesc, |
| 25 | false); |
| 26 | else |