From 4ea9008b75cdd6781207b73f4c01b6a877a0bb60 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 3 May 2013 17:21:00 +0000 Subject: powerpc/powerpnv: Properly handle failure starting CPUs If OPAL returns an error, propagate it upward rather than spinning seconds waiting for a CPU that will never show up Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/powernv/smp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index 0bdc735db16..6a3ecca5b72 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -77,9 +77,11 @@ int pnv_smp_kick_cpu(int nr) if (!paca[nr].cpu_start && firmware_has_feature(FW_FEATURE_OPALv2)) { pr_devel("OPAL: Starting CPU %d (HW 0x%x)...\n", nr, pcpu); rc = opal_start_cpu(pcpu, start_here); - if (rc != OPAL_SUCCESS) + if (rc != OPAL_SUCCESS) { pr_warn("OPAL Error %ld starting CPU %d\n", rc, nr); + return -ENODEV; + } } return smp_generic_kick_cpu(nr); } -- cgit v1.2.3