spi: atmel: fix return value check in atmel_spi_probe()
In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
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@ -1547,8 +1547,10 @@ static int atmel_spi_probe(struct platform_device *pdev)
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as->pdev = pdev;
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as->regs = devm_ioremap_resource(&pdev->dev, regs);
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if (!as->regs)
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if (IS_ERR(as->regs)) {
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ret = PTR_ERR(as->regs);
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goto out_free_buffer;
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}
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as->phybase = regs->start;
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as->irq = irq;
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as->clk = clk;
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