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fsl/fman: check of_get_phy_mode() return value

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For unknown compatibles avoid crashing and default to SGMII.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
This commit is contained in:
Madalin Bucur 2016-06-30 16:48:05 +03:00
parent 47256192c6
commit 604104fc54
1 changed files with 6 additions and 4 deletions
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10
drivers/net/ethernet/freescale/fman/mac.c
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@ -663,6 +663,7 @@ static int mac_probe(struct platform_device *_of_dev)
const u8 *mac_addr;
u32 val;
u8 fman_id;
int phy_if;
dev = &_of_dev->dev;
mac_node = dev->of_node;
@ -842,13 +843,14 @@ static int mac_probe(struct platform_device *_of_dev)
}
/* Get the PHY connection type */
priv->phy_if = of_get_phy_mode(mac_node);
if (priv->phy_if < 0) {
phy_if = of_get_phy_mode(mac_node);
if (phy_if < 0) {
dev_warn(dev,
"of_get_phy_mode() for %s failed. Defaulting to MII\n",
"of_get_phy_mode() for %s failed. Defaulting to SGMII\n",
mac_node->full_name);
priv->phy_if = PHY_INTERFACE_MODE_MII;
phy_if = PHY_INTERFACE_MODE_SGMII;
}
priv->phy_if = phy_if;
priv->speed = phy2speed[priv->phy_if];
priv->max_speed = priv->speed;