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| /openbmc/linux/arch/powerpc/platforms/pseries/ |
| H A D | dlpar.c | diff a7df5c5e52a545774c4db1f2adf09ede018ab139 Thu Apr 01 21:47:13 CDT 2010 Julia Lawall <julia@diku.dk> powerpc/pseries/dlpar: Eliminate use after free
dlpar_free_cc_nodes frees its argument, so dlpar_online_cpu should not be
called on the same value. Skip over the call to dlpar_online_cpu by
jumping directly to out.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression E,E2;
@@
dlpar_free_cc_nodes(E)
...
(
E = E2
|
* E
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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