diff options
| author | Thierry Reding <treding@nvidia.com> | 2017-03-10 19:34:55 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-13 09:35:19 +0300 |
| commit | c66f6c3775bed342693feec2925276fd13bb1355 (patch) | |
| tree | 376462f0b6c203615cc42445076a8fb7d3f3dcf3 | |
| parent | 6c1e5abe0780cecafdc24b64aefc84ce6924dda9 (diff) | |
| download | linux-c66f6c3775bed342693feec2925276fd13bb1355.tar.xz | |
net: stmmac: Disable PTP reference clock on error
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>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 7c38c9baf238..6060410d2b9e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -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: |