From 78c5c68a4cf4329d17abfa469345ddf323d4fd62 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 9 Dec 2011 15:06:18 +1100 Subject: [PATCH] powerpc/pmac: Fix SMP kernels on pre-core99 UP machines 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 --- arch/powerpc/platforms/powermac/smp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index e6f7378..44d7692 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -414,7 +414,7 @@ static struct irqaction psurge_irqaction = { static void __init smp_psurge_setup_cpu(int cpu_nr) { - if (cpu_nr != 0) + if (cpu_nr != 0 || !psurge_start) return; /* reset the entry point so if we get another intr we won't -- 2.7.4