Re: [PATCH v2] MinPlatformPkg/TestPointCheckLib: Add return value when OutTable is NULL

["Nate DeSimone" <nathaniel.l.desimone@intel.com>]

Hi Shenglei,

I don't see how this patch is at all related to the previous version of this patch. Also, you are introducing yet another new bug with this patch. Moreover, this bug is unrelated to the previous bug.

Please take a look at the function TestPointGetAcpi(). With your change added, this function is now broken since Table is a stack variable and it is not being initialized to zero. This function assumes that DumpAcpiXsdt()/DumpAcpiRsdt() will do the initialization to zero on it's behalf, you have broken this assumption with your change.

Both this patch and the previous patch have been made carelessly and I am not impressed.

Thanks,
Nate

-----Original Message-----
From: Zhang, Shenglei <shenglei.zhang@intel.com> 
Sent: Sunday, September 15, 2019 6:09 PM
To: devel@edk2.groups.io
Cc: Kubacki, Michael A <michael.a.kubacki@intel.com>; Chiu, Chasel <chasel.chiu@intel.com>; Desimone, Nathaniel L <nathaniel.l.desimone@intel.com>; Gao, Liming <liming.gao@intel.com>
Subject: [PATCH v2] MinPlatformPkg/TestPointCheckLib: Add return value when OutTable is NULL

Currently there is no check for the parameter OutTable.
So add the logic that return value EFI_INVALID_PARAMETER when the OutTable is NULL.

Cc: Michael Kubacki <michael.a.kubacki@intel.com>
Cc: Chasel Chiu <chasel.chiu@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
---

v2:Update the copyright and the if...else statement coding style.

 .../Test/Library/TestPointCheckLib/DxeCheckAcpi.c           | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Platform/Intel/MinPlatformPkg/Test/Library/TestPointCheckLib/DxeCheckAcpi.c b/Platform/Intel/MinPlatformPkg/Test/Library/TestPointCheckLib/DxeCheckAcpi.c
index 263781a2..83736bf3 100644
--- a/Platform/Intel/MinPlatformPkg/Test/Library/TestPointCheckLib/DxeCheckAcpi.c
+++ b/Platform/Intel/MinPlatformPkg/Test/Library/TestPointCheckLib/DxeCh
+++ eckAcpi.c
@@ -1,6 +1,6 @@
 /** @file
 
-Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2017 - 2019, Intel Corporation. All rights reserved.<BR>
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -610,6 +610,8 @@ DumpAcpiRsdt (
 
   if (OutTable != NULL) {
     *OutTable = NULL;
+  } else{
+    return EFI_INVALID_PARAMETER;
   }
 
   ReturnStatus = EFI_SUCCESS;
@@ -663,6 +665,8 @@ DumpAcpiXsdt (
   
   if (OutTable != NULL) {
     *OutTable = NULL;
+  } else{
+    return EFI_INVALID_PARAMETER;
   }
 
   ReturnStatus = EFI_SUCCESS;
--
2.18.0.windows.1