net: cpsw: add missing of_node_put() in cpsw_probe_dt()

stable inclusion
from stable-v5.10.115
commit 8459485db70c8d1371062657d3988c5c1ff008ca
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5IZ9C

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=8459485db70c8d1371062657d3988c5c1ff008ca



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commit 95098d5a upstream.

'tmp_node' need be put before returning from cpsw_probe_dt(),
so add missing of_node_put() in error path.

Fixes: ed3525ed ("net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Acked-by: Xie XiuQi <xiexiuqi@huawei.com>