Revision: 19541
          http://sourceforge.net/p/edk2/code/19541
Author:   hwu1225
Date:     2015-12-25 02:15:44 +0000 (Fri, 25 Dec 2015)
Log Message:
-----------
ShellPkg: Fix memory leak in function 'EfiShellSetCurDir' and 'EfiShellSetMap'.

(Sync patch r19529 from main trunk.)

Cc: Ruiyu Ni <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yao Jiewen <[email protected]>
Reviewed-by: Qiu Shumin <[email protected]>
Reviewed-by: Ruiyu Ni <[email protected]>

Revision Links:
--------------
    http://sourceforge.net/p/edk2/code/19529

Modified Paths:
--------------
    branches/UDK2015/ShellPkg/Application/Shell/ShellProtocol.c

Modified: branches/UDK2015/ShellPkg/Application/Shell/ShellProtocol.c
===================================================================
--- branches/UDK2015/ShellPkg/Application/Shell/ShellProtocol.c 2015-12-25 
02:15:16 UTC (rev 19540)
+++ branches/UDK2015/ShellPkg/Application/Shell/ShellProtocol.c 2015-12-25 
02:15:44 UTC (rev 19541)
@@ -185,6 +185,9 @@
        ){
           if (StringNoCaseCompare(&MapListNode->MapName, &Mapping) == 0) {
             RemoveEntryList(&MapListNode->Link);
+            SHELL_FREE_NON_NULL(MapListNode->DevicePath);
+            SHELL_FREE_NON_NULL(MapListNode->MapName);
+            SHELL_FREE_NON_NULL(MapListNode->CurrentDirectoryPath);
             FreePool(MapListNode);
             return (EFI_SUCCESS);
           }
@@ -2951,6 +2954,8 @@
     }
 
     if (MapListItem == NULL) {
+      FreePool (DirectoryName);
+      SHELL_FREE_NON_NULL(MapName);
       return (EFI_NOT_FOUND);
     }
 
@@ -2967,6 +2972,7 @@
         ASSERT((MapListItem->CurrentDirectoryPath == NULL && Size == 0) || 
(MapListItem->CurrentDirectoryPath != NULL));
         MapListItem->CurrentDirectoryPath = 
StrnCatGrow(&MapListItem->CurrentDirectoryPath, &Size, 
DirectoryName+StrLen(MapName), 0);
       }
+      FreePool (MapName);
     } else {
       ASSERT((MapListItem->CurrentDirectoryPath == NULL && Size == 0) || 
(MapListItem->CurrentDirectoryPath != NULL));
       MapListItem->CurrentDirectoryPath = 
StrnCatGrow(&MapListItem->CurrentDirectoryPath, &Size, DirectoryName, 0);
@@ -2982,6 +2988,7 @@
     // cant have a mapping in the directory...
     //
     if (StrStr(DirectoryName, L":") != NULL) {
+      FreePool (DirectoryName);
       return (EFI_INVALID_PARAMETER);
     }
     //
@@ -2989,6 +2996,7 @@
     //
     MapListItem = ShellCommandFindMapItem(FileSystem);
     if (MapListItem == NULL) {
+      FreePool (DirectoryName);
       return (EFI_INVALID_PARAMETER);
     }
 //    gShellCurDir = MapListItem;
@@ -3013,6 +3021,7 @@
       }
     }
   }
+  FreePool (DirectoryName);
   //
   // if updated the current directory then update the environment variable
   //


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