diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2019-11-04 04:40:33 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-11-04 22:21:25 +0300 |
| commit | 0c65b2b90d13c1deaee6449304dd367c5d4eb8ae (patch) | |
| tree | cd0eaef5cd95d586edba8e1675ec1dfaf1f540da /drivers/net/ethernet/arc | |
| parent | 5d1fcaf35d74b4188d238e46f0be37c14a01f169 (diff) | |
| download | linux-0c65b2b90d13c1deaee6449304dd367c5d4eb8ae.tar.xz | |
net: of_get_phy_mode: Change API to solve int/unit warnings
Before this change of_get_phy_mode() returned an enum,
phy_interface_t. On error, -ENODEV etc, is returned. If the result of
the function is stored in a variable of type phy_interface_t, and the
compiler has decided to represent this as an unsigned int, comparision
with -ENODEV etc, is a signed vs unsigned comparision.
Fix this problem by changing the API. Make the function return an
error, or 0 on success, and pass a pointer, of type phy_interface_t,
where the phy mode should be stored.
v2:
Return with *interface set to PHY_INTERFACE_MODE_NA on error.
Add error checks to all users of of_get_phy_mode()
Fixup a few reverse christmas tree errors
Fixup a few slightly malformed reverse christmas trees
v3:
Fix 0-day reported errors.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/arc')
| -rw-r--r-- | drivers/net/ethernet/arc/emac_arc.c | 15 | ||||
| -rw-r--r-- | drivers/net/ethernet/arc/emac_rockchip.c | 7 |
2 files changed, 15 insertions, 7 deletions
diff --git a/drivers/net/ethernet/arc/emac_arc.c b/drivers/net/ethernet/arc/emac_arc.c index 78e52d217e56..539166112993 100644 --- a/drivers/net/ethernet/arc/emac_arc.c +++ b/drivers/net/ethernet/arc/emac_arc.c @@ -20,9 +20,10 @@ static int emac_arc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct net_device *ndev; struct arc_emac_priv *priv; - int interface, err; + phy_interface_t interface; + struct net_device *ndev; + int err; if (!dev->of_node) return -ENODEV; @@ -37,9 +38,13 @@ static int emac_arc_probe(struct platform_device *pdev) priv->drv_name = DRV_NAME; priv->drv_version = DRV_VERSION; - interface = of_get_phy_mode(dev->of_node); - if (interface < 0) - interface = PHY_INTERFACE_MODE_MII; + err = of_get_phy_mode(dev->of_node, &interface); + if (err) { + if (err == -ENODEV) + interface = PHY_INTERFACE_MODE_MII; + else + goto out_netdev; + } priv->clk = devm_clk_get(dev, "hclk"); if (IS_ERR(priv->clk)) { diff --git a/drivers/net/ethernet/arc/emac_rockchip.c b/drivers/net/ethernet/arc/emac_rockchip.c index 664d664e0925..aae231c5224f 100644 --- a/drivers/net/ethernet/arc/emac_rockchip.c +++ b/drivers/net/ethernet/arc/emac_rockchip.c @@ -97,8 +97,9 @@ static int emac_rockchip_probe(struct platform_device *pdev) struct net_device *ndev; struct rockchip_priv_data *priv; const struct of_device_id *match; + phy_interface_t interface; u32 data; - int err, interface; + int err; if (!pdev->dev.of_node) return -ENODEV; @@ -114,7 +115,9 @@ static int emac_rockchip_probe(struct platform_device *pdev) priv->emac.drv_version = DRV_VERSION; priv->emac.set_mac_speed = emac_rockchip_set_mac_speed; - interface = of_get_phy_mode(dev->of_node); + err = of_get_phy_mode(dev->of_node, &interface); + if (err) + goto out_netdev; /* RK3036/RK3066/RK3188 SoCs only support RMII */ if (interface != PHY_INTERFACE_MODE_RMII) { |