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powerpc: Fix mpic_resume on early G5 macs
authorAlastair Bridgewater <alastair.bridgewater@gmail.com>
Sat, 12 Jun 2010 15:36:48 +0000 (15:36 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Tue, 15 Jun 2010 05:02:37 +0000 (15:02 +1000)
mpic_resume() on G5 macs blindly dereferences mpic->fixups, but
it may legitimately be NULL (as on PowerMac7,2).  Add an explicit
check.

This fixes suspend-to-disk with one processor (maxcpus=1) for me.

Signed-off-by: Alastair Bridgewater <alastair.bridgewater@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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