net: stmmac: fix missing unlock on error in stmmac_suspend()
commit 30f347ae upstream. Add the missing unlock before return from stmmac_suspend() in the error handling case. Fixes: 5ec55823 ("net: stmmac: add clocks management for gmac driver") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Yongxin Liu <yongxin.liu@windriver.com>
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