From: Ishizaki Kou Date: Thu, 31 May 2007 09:30:33 +0000 (+1000) Subject: [POWERPC] of_serial: Ignore unknown serial port X-Git-Tag: v2.6.23-rc1~767^2^2~31 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1558f9b44e1c6b5eba46f58214851fd24285641f;p=linux-2.6 [POWERPC] of_serial: Ignore unknown serial port Current of_serial driver assumes unknown serial port to be 8250. But this behavior may cause fatal problems when the serial port is not 8250. This corrects probe routine to ignore unknown serial port. Signed-off-by: Kou Ishizaki Acked-by: Arnd Bergmann Signed-off-by: Paul Mackerras --- diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c index 7ffdaeaf05..d7752af1c7 100644 --- a/drivers/serial/of_serial.c +++ b/drivers/serial/of_serial.c @@ -75,15 +75,13 @@ static int __devinit of_platform_serial_probe(struct of_device *ofdev, goto out; switch (port_type) { - case PORT_UNKNOWN: - dev_info(&ofdev->dev, "Unknown serial port found, " - "attempting to use 8250 driver\n"); - /* fallthrough */ case PORT_8250 ... PORT_MAX_8250: ret = serial8250_register_port(&port); break; default: /* need to add code for these */ + case PORT_UNKNOWN: + dev_info(&ofdev->dev, "Unknown serial port found, ignored\n"); ret = -ENODEV; break; }