Re: 2.4.0-test8: Ooops in soundcore

From: Alexander Viro (viro@math.psu.edu)
Date: Sat Sep 09 2000 - 15:19:16 EDT

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    On Sat, 9 Sep 2000, Peter Steiner wrote:

    > new_fops = fops_get(s->unit_fops);
    > 0x521 <soundcore_open+81>: movl 0x4(%ebx),%eax

            ITYM

    > #define fops_get(fops) \
    > (((fops) && (fops)->owner) \
                          ^^^^^^^^^^^^^ Bang!

    fops (== s->unit_ops) points to hell.

    > ? ( try_inc_mod_count((fops)->owner) ? (fops) : NULL ) \
    > : (fops))
    > ^^^^^^^^^^^^ Bang!

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