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Merge branch 'dpaa_eth-fixes'

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Madalin Bucur says:

====================
dpaa_eth: a couple of fixes

Add cleanup on PHY initialization failure path, avoid using
uninitialized memory at CGR init.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-01-04 13:45:09 -05:00
commit aa9773be2a
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
View file

@ -733,6 +733,7 @@ static int dpaa_eth_cgr_init(struct dpaa_priv *priv)
priv->cgr_data.cgr.cb = dpaa_eth_cgscn; priv->cgr_data.cgr.cb = dpaa_eth_cgscn;
/* Enable Congestion State Change Notifications and CS taildrop */ /* Enable Congestion State Change Notifications and CS taildrop */
memset(&initcgr, 0, sizeof(initcgr));
initcgr.we_mask = cpu_to_be16(QM_CGR_WE_CSCN_EN | QM_CGR_WE_CS_THRES); initcgr.we_mask = cpu_to_be16(QM_CGR_WE_CSCN_EN | QM_CGR_WE_CS_THRES);
initcgr.cgr.cscn_en = QM_CGR_EN; initcgr.cgr.cscn_en = QM_CGR_EN;
@ -2291,7 +2292,8 @@ static int dpaa_open(struct net_device *net_dev)
net_dev->phydev = mac_dev->init_phy(net_dev, priv->mac_dev); net_dev->phydev = mac_dev->init_phy(net_dev, priv->mac_dev);
if (!net_dev->phydev) { if (!net_dev->phydev) {
netif_err(priv, ifup, net_dev, "init_phy() failed\n"); netif_err(priv, ifup, net_dev, "init_phy() failed\n");
return -ENODEV; err = -ENODEV;
goto phy_init_failed;
} }
for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) { for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) {
@ -2314,6 +2316,7 @@ mac_start_failed:
for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++)
fman_port_disable(mac_dev->port[i]); fman_port_disable(mac_dev->port[i]);
phy_init_failed:
dpaa_eth_napi_disable(priv); dpaa_eth_napi_disable(priv);
return err; return err;
@ -2420,6 +2423,7 @@ static int dpaa_ingress_cgr_init(struct dpaa_priv *priv)
} }
/* Enable CS TD, but disable Congestion State Change Notifications. */ /* Enable CS TD, but disable Congestion State Change Notifications. */
memset(&initcgr, 0, sizeof(initcgr));
initcgr.we_mask = cpu_to_be16(QM_CGR_WE_CS_THRES); initcgr.we_mask = cpu_to_be16(QM_CGR_WE_CS_THRES);
initcgr.cgr.cscn_en = QM_CGR_EN; initcgr.cgr.cscn_en = QM_CGR_EN;
cs_th = DPAA_INGRESS_CS_THRESHOLD; cs_th = DPAA_INGRESS_CS_THRESHOLD;