[PATCH] add more parameter checks to libhal

[David Zeuthen]

On Mon, 2007-08-27 at 21:12 +0200, Danny Kukawka wrote:
> Hi,
> 
> this patch adds some more parameter check to some of the libhal functions to 
> avoid possible trouble (e.g. in libhal_free_property_set()).

Go for it. Thanks.

     David