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Re: [PATCH] grub-extras/lua: add fs label to grub.enum_device
From: |
Fajar A. Nugraha |
Subject: |
Re: [PATCH] grub-extras/lua: add fs label to grub.enum_device |
Date: |
Fri, 27 Feb 2015 19:40:20 +0700 |
On Fri, Feb 27, 2015 at 7:28 PM, Vladimir 'φ-coder/phcoder' Serbinenko
<address@hidden> wrote:
> On 27.02.2015 13:06, Andrei Borzenkov wrote:
>>
>> On Fri, Feb 27, 2015 at 2:56 PM, Vladimir 'φ-coder/phcoder' Serbinenko
>> <address@hidden> wrote:
>>>
>>> On 27.02.2015 12:47, Fajar A. Nugraha wrote:
>>>>
>>>>
>>>> + lua_pushstring (state, label);
>>>
>>>
>>> What happens if label is NULL?
>>>
>>
>> In all cases if grub could mount filesystem it returns strdup(label).
>> Is it possible that mount fails without setting grub_errno? If yes, it
>> is probably a bug.
>>
> Nope. If filesystem has no label (rather than just empty label), it will
> have *label == NULL and return no error which is correct. Same for UUID. So
> unless lua_pushstring has special handling for NULL, this code needs to be
> fixed.
Doesn't
if (! fs->label)
lua_pushnil (state);
do the correct handling? Or is there something I missed, and NULL does
not always evaluate to FALSE?
--
Fajar