video: fbdev: pxafb: Use correct return value for pxafb_probe()
When call function devm_platform_ioremap_resource(), we should use IS_ERR() to check the return value and return PTR_ERR() if failed. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Cc: Xuefeng Li <lixuefeng@loongson.cn> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/1590390705-22898-1-git-send-email-yangtiezhu@loongson.cn
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@ -2305,7 +2305,7 @@ static int pxafb_probe(struct platform_device *dev)
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fbi->mmio_base = devm_platform_ioremap_resource(dev, 0);
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if (IS_ERR(fbi->mmio_base)) {
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dev_err(&dev->dev, "failed to get I/O memory\n");
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ret = -EBUSY;
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ret = PTR_ERR(fbi->mmio_base);
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goto failed;
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}
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