diff options
| author |   Claudiu Beznea <claudiu.beznea@microchip.com> | 2020-12-09 15:03:35 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-12-09 16:19:21 -0800 |
| commit | f4de93f03ed8da5218607852566e3326d31729b0 (patch) | |
| tree | e7b353fab38caa5581ad18a96be5e87766cd9b82 /drivers/net/ethernet/cadence/macb_main.c | |
| parent | net: macb: add function to disable all macb clocks (diff) | |
| download | linux-dev-f4de93f03ed8da5218607852566e3326d31729b0.tar.xz linux-dev-f4de93f03ed8da5218607852566e3326d31729b0.zip | |
net: macb: unprepare clocks in case of failure
Unprepare clocks in case of any failure in fu540_c000_clk_init().
Fixes: c218ad559020 ("macb: Add support for SiFive FU540-C000")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cadence/macb_main.c')
| -rw-r--r-- | drivers/net/ethernet/cadence/macb_main.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index 81704985a79b..11bf4f8d32e1 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -4420,8 +4420,10 @@ static int fu540_c000_clk_init(struct platform_device *pdev, struct clk **pclk, return err; mgmt = devm_kzalloc(&pdev->dev, sizeof(*mgmt), GFP_KERNEL); - if (!mgmt) - return -ENOMEM; + if (!mgmt) { + err = -ENOMEM; + goto err_disable_clks; + } init.name = "sifive-gemgxl-mgmt"; init.ops = &fu540_c000_ops; @@ -4432,16 +4434,26 @@ static int fu540_c000_clk_init(struct platform_device *pdev, struct clk **pclk, mgmt->hw.init = &init; *tx_clk = devm_clk_register(&pdev->dev, &mgmt->hw); - if (IS_ERR(*tx_clk)) - return PTR_ERR(*tx_clk); + if (IS_ERR(*tx_clk)) { + err = PTR_ERR(*tx_clk); + goto err_disable_clks; + } err = clk_prepare_enable(*tx_clk); - if (err) + if (err) { dev_err(&pdev->dev, "failed to enable tx_clk (%u)\n", err); - else + *tx_clk = NULL; + goto err_disable_clks; + } else { dev_info(&pdev->dev, "Registered clk switch '%s'\n", init.name); + } return 0; + +err_disable_clks: + macb_clks_disable(*pclk, *hclk, *tx_clk, *rx_clk, *tsu_clk); + + return err; } static int fu540_c000_init(struct platform_device *pdev) |