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NAME
    UnLock -- Unlock a directory or file

SYNOPSIS
    UnLock( lock )
            D1

    void UnLock(BPTR)

FUNCTION
    The filing system lock (obtained from Lock(), DupLock(), or
    CreateDir()) is removed and deallocated.

INPUTS
    lock - BCPL pointer to a lock

NOTE
    passing zero to UnLock() is harmless

SEE ALSO
    Lock(), DupLock(), ParentOfFH(), DupLockFromFH()