Leaking despite gtk_list_store_clear()

[Andrew Smith <asmith15 learn senecac on ca>]

Hi

I am using a GtkTreeView to display the contents of the filesystem in my 
application. It always worked (I mostly followed 
http://scentric.net/tutorial/) but I just found that it leaks memory.

My understanding of the tree view model is somewhat limited so I won't 
try to speculate about what's causing the leak - all I know is it 
happens even though I call gtk_list_store_clear() on my GtkListStore*.

Would someone please take a look? It's relatively simple code, the leak 
happens in changeFsDirectory(): http://littlesvr.ca/misc/fsbrowser.c 
(it's part of ISO Master).

If you don't have the time to look at it, would you at least suggest 
common reasons why repopulating a GtkListStore* would cause a memory leak?

Thanks in advance,

Andrew