openwrt/target/linux/layerscape/patches-5.4/806-dma-0017-MLK-20205-1-dmaengine-fsl-edma-v3-fix-NULL-pointer-d.patch
Yangbo Lu cddd459140 layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2020-05-07 12:53:06 +02:00

27 lines
967 B
Diff

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