printk("emu10k1: access to NULL ptr: page = %d\n", page); 
printk(KERN_ERR "emu10k1: access to NULL ptr: page = %d\n", page); 
static inline void *offset_ptr(emu10k1_t *emu, int page, int offset){	char *ptr;	snd_assert(page >= 0 && page < emu->max_cache_pages, return NULL);	ptr = emu->page_ptr_table[page];	if (! ptr) {		printk("emu10k1: access to NULL ptr: page = %d\n", page);		return NULL;	}	ptr += offset & (PAGE_SIZE - 1);	return (void*)ptr;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/99b359ba10a582148c6725f428a33ba5356dd993/memory.c/clean/sound/pci/emu10k1/memory.c