On 2014-03-24 08:29, Julia Lawall wrote:
Another thing I saw is
del_timer(&bla->timer);
....
kfree(&bla);
In one case I saw the following:
if (isac->dch.timer.function != NULL) {
del_timer(&isac->dch.timer);
isac->dch.timer.function = NULL;
}
kfree(isac->mon_rx);
isac->mon_rx = NULL;
Is the assignment isac->dch.timer.function = NULL good enough to
solve
the problem?
No. It might lead to a NULL dereference when the other core wants
to call the callback. Same situation as in the other picture.
Thanks,
tglx
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