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 <benh@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent 748645bf

arch/powerpc/platforms/powernv/smp.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -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);
		}