powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader

[ Upstream commit 75f435eb04a58f44c9bc0fc80f4e5b25cdc64065 ]

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: ea5362f56619 ("[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 bed05b644c2c548693dc43a43260450fe699d4cd..ed37a93bf858a7a197c4220f6e017b38a45c0998 100644 (file)
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -659,6 +659,7 @@ spufs_init_isolated_loader(void)
                return;
 
        loader = of_get_property(dn, "loader", &size);
+       of_node_put(dn);
        if (!loader)
                return;