Re: [PATCH] raceless request_region() fix (was Re: Linux 2.6.0-test4)

From: Jeff Garzik (jgarzik_at_pobox.com)
Date: 08/25/03

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    Date:	Mon, 25 Aug 2003 17:59:20 -0400
To: insecure@mail.od.ua

    Is it a race if noone cares? :)

    The code does

            if (!request_region(...))
                    fail
            touch hardware
            release_region
            if (!request_region(...))
                    fail

    If the HIGHLY UNLIKELY event of another ISA driver claiming this region
    occurs, the system continues working just fine.

    At the time, I was thinking that any further touching of the code should
    be converting it to a more pnp-like structure.

            Jeff

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