powerpc/pmac: Fix SMP kernels on pre-core99 UP machines
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 9 Dec 2011 04:06:18 +0000 (15:06 +1100)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 16 Dec 2011 00:10:25 +0000 (11:10 +1100)
The code for "powersurge" SMP would kick in and cause a crash
at boot due to the lack of a NULL test.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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