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net: stmmac: dwmac-rk: fix error handling in rk_gmac_powerup()

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[ Upstream commit c69c29a1a0a8f68cd87e98ba4a5a79fb8ef2a58c ]

If phy_power_on() fails in rk_gmac_powerup(), clocks are left enabled.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Alexey Khoroshilov 2019-01-26 22:48:57 +03:00 committed by Greg Kroah-Hartman
parent 04731b3c70
commit 366abec996
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
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@ -1284,8 +1284,10 @@ static int rk_gmac_powerup(struct rk_priv_data *bsp_priv)
}
ret = phy_power_on(bsp_priv, true);
if (ret)
if (ret) {
gmac_clk_enable(bsp_priv, false);
return ret;
}
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);