From 7c9d93604b25c25dc059e2b12ad5e89ca3ed4376 Mon Sep 17 00:00:00 2001 From: Alastair Bridgewater Date: Sat, 12 Jun 2010 15:36:48 +0000 Subject: [PATCH] powerpc: Fix mpic_resume on early G5 macs 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 Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/sysdev/mpic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 2102487612a..20b73c025a4 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -1666,7 +1666,7 @@ static int mpic_resume(struct sys_device *dev) mpic->save_data[i].dest); #ifdef CONFIG_MPIC_U3_HT_IRQS - { + if (mpic->fixups) { struct mpic_irq_fixup *fixup = &mpic->fixups[i]; if (fixup->base) { -- 2.41.0