spi: tegra20-slink: add missed clk_unprepare

The driver misses calling clk_unprepare in probe failure and remove.
Add the calls to fix it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20191115083122.12278-1-hslester96@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index 51573f41ed128a8a6b5a8322069ebf71116b724e..7f4d932dade7b66fb113eb379ace0339e9304134 100644 (file)
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -1072,7 +1072,7 @@ static int tegra_slink_probe(struct platform_device *pdev)
        ret = clk_enable(tspi->clk);
        if (ret < 0) {
                dev_err(&pdev->dev, "Clock enable failed %d\n", ret);
-               goto exit_free_master;
+               goto exit_clk_unprepare;
        }
 
        spi_irq = platform_get_irq(pdev, 0);
@@ -1145,6 +1145,8 @@ static int tegra_slink_probe(struct platform_device *pdev)
        free_irq(spi_irq, tspi);
 exit_clk_disable:
        clk_disable(tspi->clk);
+exit_clk_unprepare:
+       clk_unprepare(tspi->clk);
 exit_free_master:
        spi_master_put(master);
        return ret;
@@ -1158,6 +1160,7 @@ static int tegra_slink_remove(struct platform_device *pdev)
        free_irq(tspi->irq, tspi);
 
        clk_disable(tspi->clk);
+       clk_unprepare(tspi->clk);
 
        if (tspi->tx_dma_chan)
                tegra_slink_deinit_dma_param(tspi, false);