Re: [PATCH v3 1/2] v4l: subdev: tolerate null in media_entity_to_v4l2_subdev

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On 17/05/17 15:25, Geert Uytterhoeven wrote:
> Hi Kieran,
> 
> On Wed, May 17, 2017 at 4:13 PM, Kieran Bingham <kbingham@xxxxxxxxxx> wrote:
>> --- a/include/media/v4l2-subdev.h
>> +++ b/include/media/v4l2-subdev.h
>> @@ -829,7 +829,7 @@ struct v4l2_subdev {
>>  };
>>
>>  #define media_entity_to_v4l2_subdev(ent) \
>> -       container_of(ent, struct v4l2_subdev, entity)
>> +       ent ? container_of(ent, struct v4l2_subdev, entity) : NULL
> 
> Due to the low precedence level of the ternary operator, you want
> to enclose this in parentheses.

Thanks Geert - That's quick to respin ;)

--
Kieran

> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds
> 



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