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net: stmmac: Disable PTP reference clock on error

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If an error occurs while opening the device, make sure to disable the
PTP reference clock.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thierry Reding 2017-03-10 17:34:55 +01:00 committed by David S. Miller
parent 6c1e5abe07
commit c66f6c3775
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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@ -1754,6 +1754,13 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp)
return 0;
}
static void stmmac_hw_teardown(struct net_device *dev)
{
struct stmmac_priv *priv = netdev_priv(dev);
clk_disable_unprepare(priv->plat->clk_ptp_ref);
}
/**
* stmmac_open - open entry point of the driver
* @dev : pointer to the device structure.
@ -1863,6 +1870,7 @@ irq_error:
phy_stop(dev->phydev);
del_timer_sync(&priv->txtimer);
stmmac_hw_teardown(dev);
init_error:
free_dma_desc_resources(priv);
dma_desc_error: