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spi: spi-orion: check return value from clk_prepare()/clk_enable()

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clk_prepare()/clk_enable() can fail, and it's return value should
be checked.  Add the proper checking, and while we're here, convert
to clk_prepare_enable().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Russell King 2014-06-21 11:32:23 +01:00 committed by Mark Brown
parent 7171511eae
commit c85012addd
1 changed files with 4 additions and 2 deletions
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6
drivers/spi/spi-orion.c
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@ -382,8 +382,10 @@ static int orion_spi_probe(struct platform_device *pdev)
goto out; goto out;
} }
clk_prepare(spi->clk); status = clk_prepare_enable(spi->clk);
clk_enable(spi->clk); if (status)
goto out;
tclk_hz = clk_get_rate(spi->clk); tclk_hz = clk_get_rate(spi->clk);
master->max_speed_hz = DIV_ROUND_UP(tclk_hz, 4); master->max_speed_hz = DIV_ROUND_UP(tclk_hz, 4);
master->min_speed_hz = DIV_ROUND_UP(tclk_hz, 30); master->min_speed_hz = DIV_ROUND_UP(tclk_hz, 30);