From 6b4c212b95ce6a586473a772fb2d28ab22a38f0e Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 2 Jan 2017 12:56:03 +0100 Subject: net: stmmac: dwmac-oxnas: fix fixed-link-phydev leaks 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: 5ed7414062e7 ("net: stmmac: Add OXNAS Glue Driver") Signed-off-by: Johan Hovold Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c | 41 ++++++++++++++--------- 1 file changed, 26 insertions(+), 15 deletions(-) (limited to 'drivers/net/ethernet/stmicro') diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c index fcc237e0aae1..3efd110613df 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-oxnas.c @@ -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, -- cgit v1.2.3