Re: [PATCH] In absence of braces, port and NULL are missed

[Tony Prisk <linux@prisktech.co.nz>]

On 15/10/13 01:54, Mark Rutland wrote:
> [Adding Tony Prisk and linux-serial]
>
> Hi Roel,
>
> While this looks like a good fix, the commit message is a bit confusing.
> How about something like the message between the scissor lines below:
>
> ---->8----
> [PATCH] serial: vt8500: add missing braces
>
> Due to missing braces on an if statement, port will always be assigned
> -1 regardless of any alias entries in the dt, which was clearly not the
> intended behaviour.
>
> This patch adds the missing braces, fixing the issue.
> ---->8----
>
> Also, while this is device tree related, you should Cc the driver
> maintainer when submitting driver changes.
>
> Cheers,
> Mark.
>
> On Sun, Oct 13, 2013 at 11:29:36PM +0100, Roel Kluin wrote:
>> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
>> ---
>>   drivers/tty/serial/vt8500_serial.c | 5 +++--
>>   1 file changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c
>> index 93b697a..4cf71c0 100644
>> --- a/drivers/tty/serial/vt8500_serial.c
>> +++ b/drivers/tty/serial/vt8500_serial.c
>> @@ -561,12 +561,13 @@ static int vt8500_serial_probe(struct platform_device *pdev)
>>   	if (!mmres || !irqres)
>>   		return -ENODEV;
>>   
>> -	if (np)
>> +	if (np) {
>>   		port = of_alias_get_id(np, "serial");
>>   		if (port >= VT8500_MAX_PORTS)
>>   			port = -1;
>> -	else
>> +        } else {
>>   		port = -1;
>> +        }
>>   
>>   	if (port < 0) {
>>   		/* calculate the port id */
>> -- 
>> 1.8.1.2
>>
>> --
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Nice find and thanks for the fix.

Acked-by: Tony Prisk <linux@prisktech.co.nz>

Regards
Tony P