diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index 8f41ef364fc6..b1201dbafcaf 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -332,10 +332,12 @@ static void pnv_cause_ipi(int cpu) static void __init pnv_smp_probe(void) { - if (xive_enabled()) - xive_smp_probe(); - else + if (xive_enabled()) { + if (xive_smp_probe() < 0) + return; + } else { xics_smp_probe(); + } if (cpu_has_feature(CPU_FTR_DBELL)) { ic_cause_ipi = smp_ops->cause_ipi; diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index db99725e752b..14cd0634eeca 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -194,10 +194,12 @@ static int pseries_cause_nmi_ipi(int cpu) static __init void pSeries_smp_probe(void) { - if (xive_enabled()) - xive_smp_probe(); - else + if (xive_enabled()) { + if (xive_smp_probe() < 0) + return; + } else { xics_smp_probe(); + } /* No doorbell facility, must use the interrupt controller for IPIs */ if (!cpu_has_feature(CPU_FTR_DBELL)) diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c index 9f80c16be23f..bbe7c85274ea 100644 --- a/arch/powerpc/sysdev/xive/common.c +++ b/arch/powerpc/sysdev/xive/common.c @@ -1267,15 +1267,17 @@ noinstr static void xive_cleanup_cpu_ipi(unsigned int cpu, struct xive_cpu *xc) int __init xive_smp_probe(void) { + int ret; + smp_ops->cause_ipi = xive_cause_ipi; /* Register the IPI */ - xive_init_ipis(); + ret = xive_init_ipis(); + if (ret < 0) + return ret; /* Allocate and setup IPI for the boot CPU */ - xive_setup_cpu_ipi(smp_processor_id()); - - return 0; + return xive_setup_cpu_ipi(smp_processor_id()); } #endif /* CONFIG_SMP */