Messages in this thread Patch in this message | | | From | Claudiu Beznea <> | Subject | [PATCH 3/7] net: macb: unprepare clocks in case of failure | Date | Fri, 4 Dec 2020 14:34:17 +0200 |
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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> --- drivers/net/ethernet/cadence/macb_main.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index b23e986ac6dc..29d144690b3b 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -4406,8 +4406,10 @@ 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_clocks; + } init.name = "sifive-gemgxl-mgmt"; init.ops = &fu540_c000_ops; @@ -4418,16 +4420,29 @@ 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_clocks; + } err = clk_prepare_enable(*tx_clk); - if (err) + if (err) { dev_err(&pdev->dev, "failed to enable tx_clk (%u)\n", err); - else + goto err_disable_clocks; + } else { dev_info(&pdev->dev, "Registered clk switch '%s'\n", init.name); + } return 0; + +err_disable_clocks: + clk_disable_unprepare(*tx_clk); + clk_disable_unprepare(*hclk); + clk_disable_unprepare(*pclk); + clk_disable_unprepare(*rx_clk); + clk_disable_unprepare(*tsu_clk); + + return err; } static int fu540_c000_init(struct platform_device *pdev) -- 2.7.4
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