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@@ -60,6 +60,10 @@ static int __init serial_init_chip(struct parisc_device *dev)
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7272727 : 1843200;
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uart.port.mapbase = address;
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uart.port.membase = ioremap_nocache(address, 16);
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+ if (!uart.port.membase) {
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+ dev_warn(&dev->dev, "Failed to map memory\n");
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+ return -ENOMEM;
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+ }
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uart.port.irq = dev->irq;
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uart.port.flags = UPF_BOOT_AUTOCONF;
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uart.port.dev = &dev->dev;
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