Re: How to empty a list od type struct list_head

[Thomas Petazzoni <thomas.petazzoni@xxxxxxxx>]

Hi,

Vincenzo Mallozzi wrote:

> I'm creating a list of type struct list_head (as I described in previous 
> emails).
> Now, I've a doubt regarding the emptying of lists of that type.
> I know there are functions like list_del() that delete an element from the 
> list.
> Is there a method to empty the whole list or I've to implement such a method 
> by scanning the whole list and deleting each of its element?

A list is composed of elements you've allocated. How can the list 
management functions know how to free these elements ?

Basically, you have to iterate through the list, delete and free each 
element. Make sure you use the correct functions to iterate through the 
list: list_for_each() won't work if you remove elements while iterating. 
However, list_for_each_safe() will work.

Sincerly,

Thomas
--
Thomas Petazzoni
thomas.petazzoni@xxxxxxxx

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