Clarify the MARCO a little.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11051 6f19259b-4bc3-4df7-8a09-765794883524
2010-11-12 19:46:26 +00:00 · 2010-11-12 19:46:26 +00:00 · a301fe0cc8
parent 4ba4961641
commit a301fe0cc8
1 changed files with 3 additions and 2 deletions
--- a/ShellPkg/Include/ShellBase.h
+++ b/ShellPkg/Include/ShellBase.h
@ -20,8 +20,9 @@ typedef VOID *SHELL_FILE_HANDLE;
 #ifndef SHELL_FREE_NON_NULL
 #define SHELL_FREE_NON_NULL(Pointer)  \
  do {                                \
-    if (Pointer != NULL) {            \
-      FreePool(Pointer);              \
+    if ((Pointer) != NULL) {          \
+      FreePool((Pointer));            \
+      (Pointer) = NULL;               \
    }                                 \
  } while(FALSE)
 #endif //SHELL_FREE_NON_NULL