target/linux/layerscape/patches-5.4/701-net-0399-staging-fsl_ppfe-eth-Enhance-error-checking-in-platf.patch

   1 From 1ccc18ca96d8a824f2af45d1046d23ccdb90f3df Mon Sep 17 00:00:00 2001
   2 From: Anji Jagarlmudi <anji.jagarlmudi@nxp.com>
   3 Date: Wed, 8 Jan 2020 12:18:40 +0530
   4 Subject: [PATCH] staging: fsl_ppfe/eth: Enhance error checking in platform
   5  probe
   6
   7 Fix the kernel crash when MAC addr is not passed in dtb.
   8
   9 Signed-off-by: Anji Jagarlmudi <anji.jagarlmudi@nxp.com>
  10 ---
  11  drivers/staging/fsl_ppfe/pfe_ls1012a_platform.c | 10 +++++++---
  12  1 file changed, 7 insertions(+), 3 deletions(-)
  13
  14 --- a/drivers/staging/fsl_ppfe/pfe_ls1012a_platform.c
  15 +++ b/drivers/staging/fsl_ppfe/pfe_ls1012a_platform.c
  16 @@ -31,7 +31,11 @@ static int pfe_get_gemac_if_properties(s
  17         const u32 *addr;
  18
  19         addr = of_get_property(gem, "reg", &size);
  20 -       port = be32_to_cpup(addr);
  21 +       if (addr)
  22 +               port = be32_to_cpup(addr);
  23 +       else
  24 +               goto err;
  25 +
  26
  27         pdata->ls1012a_eth_pdata[port].gem_id = port;
  28