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net: fec: introduce fec_ptp_stop and use in probe fail path

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This function frees resources and cancels delayed work item that
have been initialized in fec_ptp_init().

Use this to do proper error handling if something goes wrong in
probe function after fec_ptp_init has been called.

Signed-off-by: Lucas Stach <[email protected]>
Acked-by: Fugang Duan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Lucas Stach authored and David S. Miller committed 2015-07-26 21:51:53 -07:00
1 parent c0a1a0a698
commit 32cba57ba7
3 files changed
+13 -3
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drivers/net/ethernet/freescale/fec.h
+1
View File
@@ -562,6 +562,7 @@ struct fec_enet_private {
};
void fec_ptp_init(struct platform_device *pdev);
void fec_ptp_stop(struct platform_device *pdev);
void fec_ptp_start_cyclecounter(struct net_device *ndev);
int fec_ptp_set(struct net_device *ndev, struct ifreq *ifr);
int fec_ptp_get(struct net_device *ndev, struct ifreq *ifr);
drivers/net/ethernet/freescale/fec_main.c
+2 -3
View File
@@ -3454,6 +3454,7 @@ failed_register:
failed_mii_init:
failed_irq:
failed_init:
fec_ptp_stop(pdev);
if (fep->reg_phy)
regulator_disable(fep->reg_phy);
failed_regulator:
@@ -3473,14 +3474,12 @@ fec_drv_remove(struct platform_device *pdev)
struct net_device *ndev = platform_get_drvdata(pdev);
struct fec_enet_private *fep = netdev_priv(ndev);
cancel_delayed_work_sync(&fep->time_keep);
cancel_work_sync(&fep->tx_timeout_work);
fec_ptp_stop(pdev);
unregister_netdev(ndev);
fec_enet_mii_remove(fep);
if (fep->reg_phy)
regulator_disable(fep->reg_phy);
if (fep->ptp_clock)
ptp_clock_unregister(fep->ptp_clock);
of_node_put(fep->phy_node);
free_netdev(ndev);
drivers/net/ethernet/freescale/fec_ptp.c
+10
View File
@@ -604,6 +604,16 @@ void fec_ptp_init(struct platform_device *pdev)
schedule_delayed_work(&fep->time_keep, HZ);
}
void fec_ptp_stop(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
struct fec_enet_private *fep = netdev_priv(ndev);
cancel_delayed_work_sync(&fep->time_keep);
if (fep->ptp_clock)
ptp_clock_unregister(fep->ptp_clock);
}
/**
* fec_ptp_check_pps_event
* @fep: the fec_enet_private structure handle