[net-next] batman-adv: Fix the wrong definition
Commit Message
There are three variables that are required at most,
no need to define four variables.
Fixes: 0fa4c30d710d ("batman-adv: Make sysfs support optional")
Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
---
net/batman-adv/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Comments
October 28, 2021 3:35 PM, "Antonio Quartulli" <a@unstable.cc> 写到:
> Hi,
>
> On 28/10/2021 09:23, Yajun Deng wrote:
>
>> There are three variables that are required at most,
>> no need to define four variables.
>>
>> Fixes: 0fa4c30d710d ("batman-adv: Make sysfs support optional")
>> Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
>
> NAK.
>
> kobject_uevent_env() does not know how many items are stored in the
> array and thus requires it to be NULL terminated.
>
> Please check the following for reference:
>
> https://elixir.bootlin.com/linux/v5.15-rc6/source/lib/kobject_uevent.c#L548
>
Oh, I didn't notice there.
> OTOH I guess we could still use '{}' for the initialization.
>
> Regards,
>
> --
> Antonio Quartulli
@@ -656,7 +656,7 @@ int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type,
{
int ret = -ENOMEM;
struct kobject *bat_kobj;
- char *uevent_env[4] = { NULL, NULL, NULL, NULL };
+ char *uevent_env[3] = {};
bat_kobj = &bat_priv->soft_iface->dev.kobj;