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

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[ Upstream commit a40fdaf1420d6e6bda0dd2df1e6806013e58dbe1 ]

This reverts commit a0ff72f9f5.

Since the commit b015f6bc95 ("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 leaked.

Fixes: a0ff72f9f5 ("powerpc/pseries/hotplug-cpu: Remove double free in error path")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
[mpe: Caused by me applying a patch to a function that had changed in the interim]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201111020752.1686139-1-zhangxiaoxu5@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zhang Xiaoxu 2020-11-10 21:07:52 -05:00 committed by Greg Kroah-Hartman
parent a063e3faa3
commit 02cf67c9b6
1 changed files with 1 additions and 0 deletions
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arch/powerpc/platforms/pseries/hotplug-cpu.c
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@ -746,6 +746,7 @@ 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;
}