spi/dw_spi: don't treat NULL clk as an error
clk_get() returns a struct clk cookie to the driver and some platforms may return NULL if they only support a single clock. clk_get() has only failed if it returns a ERR_PTR() encoded pointer. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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@ -9,6 +9,7 @@
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*/
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#include <linux/clk.h>
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#include <linux/err.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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@ -68,8 +69,8 @@ static int __devinit dw_spi_mmio_probe(struct platform_device *pdev)
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}
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dwsmmio->clk = clk_get(&pdev->dev, NULL);
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if (!dwsmmio->clk) {
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ret = -ENODEV;
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if (IS_ERR(dwsmmio->clk)) {
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ret = PTR_ERR(dwsmmio->clk);
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goto err_irq;
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}
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clk_enable(dwsmmio->clk);
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