My ptr is NULL, why ?

From: archibald (glop00.5.archibald_at_spamgourmet.com)
Date: 10/29/03 

Date: Wed, 29 Oct 2003 11:58:37 +0100

Hi all,

I'm faced with a strange problem, look :

struct Doodad
{
   struct thingamy * ptr1;
   struct ....
   ....
};

struct info
{
   Doodad * gizmo;
   int count;
};

void function2( struct info * paramMsg )
{
   /* here, I also tried with GFP_ATOMIC */
   paramMsg->gizmo = kmalloc( sizeof( struct Doodad ), GFP_KERNEL );
   paramMsg->count = 1000;

   printk( KERN_DEBUG "fct2 : gizmo = %p\n", paramMsg->gizmo );
   printk( KERN_DEBUG "fct2 : count = %lu\n", paramMsg->count );
}

void function1( void )
{
   struct info * msg;

   msg = kmalloc( sizeof(info), GFP_KERNEL );
   msg->gizmo = NULL;
   msg->count = 0;

   function2( msg );

   printk( KERN_DEBUG "fct1 : gizmo = %p\n", paramMsg->gizmo );
   printk( KERN_DEBUG "fct1 : count = %lu\n", paramMsg->count );

   .....
}

I get :

fct2 : gizmo = d6496800
fct2 : count = 1000

fct1 : gizmo = 00000000 <==== Why ?
fct1 : count = 1000

I can't understand why gizmo = 00000000 in fct1, it should have the same
value that is in fct2, do you agree ?

In my real code, this two functions are called when the module is
initialized, that might explained this but I don't know and even if, I
can't understand why.

Can someone help me to understand this strange problem ( for me ) ?

Thanks.