[U-Boot] [PATCH 3/5] net: Make copy_filename() accept NULL src

[Joe Hershberger]

On Wed, Jul 4, 2018 at 4:25 AM, Alexander Graf <agraf at suse.de> wrote:
> On 07/04/2018 02:36 AM, Joe Hershberger wrote:
>>
>> Rather than crashing, check the src ptr and set dst to empty string.
>>
>> Signed-off-by: Joe Hershberger <joe.hershberger at ni.com>
>
>
> Wouldn't it make more sense to check for the existence outside at the
> caller's side? That way it's much easier to see what really is happening.

It's much easier to allow NULL so that we can directly pass the return
result of getenv().

>
> Alex
>
>
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