From: Mark Brown <broonie@linaro.org>
Date: Tue, 17 Dec 2013 19:20:40 +0000 (+0000)
Subject: arm64: topology: Correct handling of thread zero in DT parsing
X-Git-Tag: firefly_0821_release~3680^2~158^2~3^2~3
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=be48c025850bca06a22059a8d33c1733e63ff4f7;p=firefly-linux-kernel-4.4.55.git

arm64: topology: Correct handling of thread zero in DT parsing

Reported-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 8828e0bfc328..f9ffa81b3817 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -115,7 +115,7 @@ static void __init parse_core(struct device_node *core, int core_id)
 		if (t) {
 			leaf = false;
 			cpu = get_cpu_for_node(t);
-			if (cpu) {
+			if (cpu >= 0) {
 				pr_info("CPU%d: socket %d core %d thread %d\n",
 					cpu, cluster_id, core_id, i);
 				cpu_topology[cpu].socket_id = cluster_id;