Commit 6c90a1d0 authored by Gong Yuanjun's avatar Gong Yuanjun Committed by Liu Chuang
Browse files

mips: cpc: Fix refcount leak in mips_cpc_default_phys_base 

stable inclusion
from stable-v4.19.247
commit 961ee8a6eeef4632a215d995d837b204f8c7c2d4
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IBP2G2
CVE: CVE-2022-49324

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=961ee8a6eeef4632a215d995d837b204f8c7c2d4



----------------------

[ Upstream commit 4107fa70 ]

Add the missing of_node_put() to release the refcount incremented
by of_find_compatible_node().

Signed-off-by: default avatarGong Yuanjun <ruc_gongyuanjun@163.com>
Reviewed-by: default avatarSerge Semin <fancer.lancer@gmail.com>
Signed-off-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarLiu Chuang <liuchuang40@huawei.com>
parent 9b569f9f

arch/mips/kernel/mips-cpc.c

+1 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ phys_addr_t __weak mips_cpc_default_phys_base(void) 
	cpc_node = of_find_compatible_node(of_root, NULL, "mti,mips-cpc");

	if (cpc_node) {

		err = of_address_to_resource(cpc_node, 0, &res);

		of_node_put(cpc_node);

		if (!err)

			return res.start;

	}