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altera_uart: Don't use plain integer as NULL pointer
Fixes sparse warning. Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com> Cc: Alan Cox <alan@linux.intel.com> Acked-by: Tobias Klauser <tklauser@distanz.ch>
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@ -461,7 +461,7 @@ static int __init altera_uart_console_setup(struct console *co, char *options)
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if (co->index < 0 || co->index >= CONFIG_SERIAL_ALTERA_UART_MAXPORTS)
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return -EINVAL;
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port = &altera_uart_ports[co->index].port;
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if (port->membase == 0)
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if (!port->membase)
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return -ENODEV;
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if (options)
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