From: Yangtao Li <tiny.windzz@gmail.com>
Date: Thu, 27 Dec 2018 17:45:51 +0000 (-0500)
Subject: csky: Don't leak device tree node reference
X-Git-Tag: v5.4-rc1~1865^2~18
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=398539dd69341f8e3b87b8fea9355c7edfb6d99a;p=platform%2Fkernel%2Flinux-rpi.git

csky: Don't leak device tree node reference

of_find_node_by_type() acquires a reference to the node returned by it
and that reference needs to be dropped by its caller. setup_smp()
doesn't do that, so fix it by converting to for_each_of_cpu_node().

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
---

diff --git a/arch/csky/kernel/smp.c b/arch/csky/kernel/smp.c
index 36ebaf9..74d6273 100644
--- a/arch/csky/kernel/smp.c
+++ b/arch/csky/kernel/smp.c
@@ -138,7 +138,7 @@ void __init setup_smp(void)
 	struct device_node *node = NULL;
 	int cpu;
 
-	while ((node = of_find_node_by_type(node, "cpu"))) {
+	for_each_of_cpu_node(node) {
 		if (!of_device_is_available(node))
 			continue;