RtlFreeUnicodeString - NtDoc

#ifndef _NTRTL_H

/**
 * The RtlFreeUnicodeString routine releases storage that was allocated by RtlAnsiStringToUnicodeString or RtlUpcaseUnicodeString.
 *
 * \param UnicodeString A pointer to the string buffer.
 * \sa https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nf-wdm-rtlfreeunicodestring
 */
NTSYSAPI
VOID
NTAPI
RtlFreeUnicodeString(
    _Inout_ _At_(UnicodeString->Buffer, _Frees_ptr_opt_) PUNICODE_STRING UnicodeString
    );

#endif
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