resource: Let request_ioport_region return an error pointer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -146,7 +146,7 @@ struct resource *request_ioport_region(const char *name,
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res = __request_region(&ioport_resource, name, start, end);
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res = __request_region(&ioport_resource, name, start, end);
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if (IS_ERR(res))
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if (IS_ERR(res))
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return NULL;
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return ERR_CAST(res);
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return res;
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return res;
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}
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}
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@ -353,8 +353,8 @@ static int ns16550_init_ioport(struct device_d *dev, struct ns16550_priv *priv)
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return PTR_ERR(res);
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return PTR_ERR(res);
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res = request_ioport_region(dev_name(dev), res->start, res->end);
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res = request_ioport_region(dev_name(dev), res->start, res->end);
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if (!res)
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if (IS_ERR(res))
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return -ENODEV;
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return PTR_ERR(res);
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priv->iobase = res->start;
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priv->iobase = res->start;
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