From: Miaoqian Lin <linmq006@gmail.com>
Date: Fri, 3 Jun 2022 12:15:42 +0000 (+0400)
Subject: powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader
X-Git-Tag: v5.18.18~161
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0aa5de2547b7ccf0a31bc740d12f829fae243112;p=thirdparty%2Fkernel%2Fstable.git

powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader

[ Upstream commit 6ac059dacffa8ab2f7798f20e4bd3333890c541c ]

of_find_node_by_path() returns remote device nodepointer with
refcount incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: 0afacde3df4c ("[POWERPC] spufs: allow isolated mode apps by starting the SPE loader")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220603121543.22884-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 4c702192412f1..96f5e2e430180 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -660,6 +660,7 @@ spufs_init_isolated_loader(void)
 		return;
 
 	loader = of_get_property(dn, "loader", &size);
+	of_node_put(dn);
 	if (!loader)
 		return;