ShellPkg: BcfgDisplayDump(): eliminate FilePathList duplication

Copying and releasing each EFI_LOAD_OPTION.FilePathList under the name
DevPath is wasteful -- we only need FilePathList for a single conversion
to text. Do it directly from the EFI_LOAD_OPTION object.

This patch is not supposed to change observable behavior.

Cc: Jaben Carsey <jaben.carsey@intel.com>
Cc: Ryan Harkin <ryan.harkin@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19713 6f19259b-4bc3-4df7-8a09-765794883524
(cherry picked from commit 40de6483ec902472dabf61332595194937f5c260)

1 files changed, 3 insertions, 10 deletions

diff --git a/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.c b/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.c
index aac85d3850..d109ca29a7 100644
--- a/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.c
+++ b/ShellPkg/Library/UefiShellBcfgCommandLib/UefiShellBcfgCommandLib.c
@@ -1050,7 +1050,7 @@ BcfgDisplayDump(
   UINTN           LoopVar;

   UINTN           LoopVar2;

   CHAR16          *DevPathString;

-  VOID            *DevPath;

+  VOID            *FilePathList;

   UINTN           Errors;

   EFI_LOAD_OPTION *LoadOption;

   CHAR16          *Description;

@@ -1066,7 +1066,6 @@ BcfgDisplayDump(
   for (LoopVar = 0 ; LoopVar < OrderCount ; LoopVar++) {

     Buffer        = NULL;

     BufferSize    = 0;

-    DevPath       = NULL;

     DevPathString = NULL;

 

     UnicodeSPrint(VariableName, sizeof(VariableName), L"%s%04x", Op, CurrentOrder[LoopVar]);

@@ -1116,11 +1115,8 @@ BcfgDisplayDump(
     DescriptionSize = StrSize (Description);

 

     if (LoadOption->FilePathListLength != 0) {

-      DevPath = AllocateZeroPool(LoadOption->FilePathListLength);

-      if (DevPath != NULL) {

-        CopyMem(DevPath, Buffer+6+DescriptionSize, LoadOption->FilePathListLength);

-        DevPathString = ConvertDevicePathToText(DevPath, TRUE, FALSE);

-      }

+      FilePathList = (UINT8 *)Description + DescriptionSize;

+      DevPathString = ConvertDevicePathToText(FilePathList, TRUE, FALSE);

     }

     ShellPrintHiiEx(

       -1,

@@ -1153,9 +1149,6 @@ Cleanup:
     if (Buffer != NULL) {

       FreePool(Buffer);

     }

-    if (DevPath != NULL) {

-      FreePool(DevPath);

-    }

     if (DevPathString != NULL) {

       FreePool(DevPathString);

     }