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pwm: renesas-tpu: fix return value check in tpu_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> Reviewed-by: Axel Lin <axel.lin@ingics.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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@ -410,10 +410,8 @@ static int tpu_probe(struct platform_device *pdev)
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}
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tpu->base = devm_ioremap_resource(&pdev->dev, res);
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if (tpu->base == NULL) {
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dev_err(&pdev->dev, "failed to remap I/O memory\n");
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return -ENXIO;
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}
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if (IS_ERR(tpu->base))
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return PTR_ERR(tpu->base);
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tpu->clk = devm_clk_get(&pdev->dev, NULL);
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if (IS_ERR(tpu->clk)) {
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