[PATCH] Revert "powerpc/pseries/hotplug-cpu: Remove double free in error path"

[Zhang Xiaoxu]

This reverts commit a0ff72f9f5a780341e7ff5e9ba50a0dad5fa1980.

Since the commit b015f6bc9547 ("powerpc/pseries: Add cpu DLPAR
support for drc-info property"), the 'cpu_drcs' wouldn't be double
freed when the 'cpus' node not found.

So we needn't apply this patch, otherwise, the memory will be leak.

Fixes: a0ff72f9f5a7 ("powerpc/pseries/hotplug-cpu: Remove double free in error 
path")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Zhang Xiaoxu <zhangxiao...@huawei.com>
---
 arch/powerpc/platforms/pseries/hotplug-cpu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c 
b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index f2837e33bf5d..4bb1c9f2bb11 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -743,6 +743,7 @@ static int dlpar_cpu_add_by_count(u32 cpus_to_add)
        parent = of_find_node_by_path("/cpus");
        if (!parent) {
                pr_warn("Could not find CPU root node in device tree\n");
+               kfree(cpu_drcs);
                return -1;
        }
 
-- 
2.25.4