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-rw-r--r--MdeModulePkg/Universal/SetupBrowserDxe/Ui.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.h b/MdeModulePkg/Universal/SetupBrowserDxe/Ui.h
index 45fb3eba3e..6b65103714 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.h
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Ui.h
@@ -623,6 +623,8 @@ ClearLines (
hit, then 2 Unicode character will consume an output storage
space with size of CHAR16 till a NARROW_CHAR is hit.
+ If String is NULL, then ASSERT ().
+
@param String The input string to be counted.
@return Storage space for the input string.