ArmPlatformPkg/Bds: Do not free NULL pointer

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15473 6f19259b-4bc3-4df7-8a09-765794883524
diff --git a/ArmPlatformPkg/Bds/Bds.c b/ArmPlatformPkg/Bds/Bds.c
index d2b6225..ebad6fe 100644
--- a/ArmPlatformPkg/Bds/Bds.c
+++ b/ArmPlatformPkg/Bds/Bds.c
@@ -337,7 +337,7 @@
 

       if (DefaultBootArgument == (CHAR16*)PcdGetPtr (PcdDefaultBootArgument)) {

         FreePool (AsciiDefaultBootArgument);

-      } else {

+      } else if (DefaultBootArgument != NULL) {

         FreePool (DefaultBootArgument);

       }

     } else {