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Path: utzoo!mnetor!seismo!ll-xn!cit-vax!mangler
From: mangler@cit-vax.Caltech.Edu (System Mangler)
Newsgroups: comp.unix.questions
Subject: redundant range checking of minor(dev)
Message-ID: <2814@cit-vax.Caltech.Edu>
Date: Tue, 26-May-87 02:06:54 EDT
Article-I.D.: cit-vax.2814
Posted: Tue May 26 02:06:54 1987
Date-Received: Wed, 27-May-87 00:44:30 EDT
Organization: California Institute of Technology
Lines: 5
Keywords: paranoia can't-happen

Most drivers check that minor(dev) is within range in every call
to the read and write routines.  Why isn't it sufficient to do
this once in the open routine?	Is it just unwarranted paranoia?

Don Speck   speck@vlsi.caltech.edu  {seismo,rutgers,ames}!cit-vax!speck