powerpc/powernv: Don't alloc IRQ map if necessary

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On PowerNV platform, the OPAL interrupts are exported by firmware
through device-node property (/ibm,opal::opal-interrupts). Under
some extreme circumstances (e.g. simulator), we don't have this
property found from the device tree. For that case, we shouldn't
allocate the interrupt map. Otherwise, slab complains allocating
zero sized memory chunk.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Gavin Shan 2015-01-23 14:25:06 +11:00 • committed by Michael Ellerman

parent c1c3a526bb

commit 31494cf353

1 changed files with 4 additions and 3 deletions

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arch/powerpc/platforms/powernv/opal.c

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