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net: stmmac: dwmac-oxnas: fix fixed-link-phydev leaks

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Make sure to deregister and free any fixed-link phy registered during
probe on probe errors and on driver unbind by calling the new glue
helper function.

For driver unbind, use the generic stmmac-platform remove implementation
and add an exit callback to disable the clock.

Fixes: 5ed7414062 ("net: stmmac: Add OXNAS Glue Driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johan Hovold 2017-01-02 12:56:03 +01:00 committed by David S. Miller
parent 8f87e626b0
commit 6b4c212b95
1 changed files with 26 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c
View File

@ -105,6 +105,13 @@ static int oxnas_dwmac_init(struct oxnas_dwmac *dwmac)
return 0;
}
static void oxnas_dwmac_exit(struct platform_device *pdev, void *priv)
{
struct oxnas_dwmac *dwmac = priv;
clk_disable_unprepare(dwmac->clk);
}
static int oxnas_dwmac_probe(struct platform_device *pdev)
{
struct plat_stmmacenet_data *plat_dat;
@ -121,40 +128,44 @@ static int oxnas_dwmac_probe(struct platform_device *pdev)
return PTR_ERR(plat_dat);
dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
if (!dwmac)
return -ENOMEM;
if (!dwmac) {
ret = -ENOMEM;
goto err_remove_config_dt;
}
dwmac->dev = &pdev->dev;
plat_dat->bsp_priv = dwmac;
plat_dat->exit = oxnas_dwmac_exit;
dwmac->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
"oxsemi,sys-ctrl");
if (IS_ERR(dwmac->regmap)) {
dev_err(&pdev->dev, "failed to have sysctrl regmap\n");
return PTR_ERR(dwmac->regmap);
ret = PTR_ERR(dwmac->regmap);
goto err_remove_config_dt;
}
dwmac->clk = devm_clk_get(&pdev->dev, "gmac");
if (IS_ERR(dwmac->clk))
return PTR_ERR(dwmac->clk);
if (IS_ERR(dwmac->clk)) {
ret = PTR_ERR(dwmac->clk);
goto err_remove_config_dt;
}
ret = oxnas_dwmac_init(dwmac);
if (ret)
return ret;
goto err_remove_config_dt;
ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
if (ret)
clk_disable_unprepare(dwmac->clk);
goto err_dwmac_exit;
return ret;
}
static int oxnas_dwmac_remove(struct platform_device *pdev)
{
struct oxnas_dwmac *dwmac = get_stmmac_bsp_priv(&pdev->dev);
int ret = stmmac_dvr_remove(&pdev->dev);
return 0;
clk_disable_unprepare(dwmac->clk);
err_dwmac_exit:
oxnas_dwmac_exit(pdev, plat_dat->bsp_priv);
err_remove_config_dt:
stmmac_remove_config_dt(pdev, plat_dat);
return ret;
}
@ -197,7 +208,7 @@ MODULE_DEVICE_TABLE(of, oxnas_dwmac_match);
static struct platform_driver oxnas_dwmac_driver = {
.probe = oxnas_dwmac_probe,
.remove = oxnas_dwmac_remove,
.remove = stmmac_pltfr_remove,
.driver = {
.name = "oxnas-dwmac",
.pm = &oxnas_dwmac_pm_ops,