if (!e) return NULL; if (!try_module_get(e->elevator_owner)) return NULL; 
spin_lock_irq(&elv_list_lock);  e = elevator_find(name); if (e && !try_module_get(e->elevator_owner)) e = NULL;  spin_unlock_irq(&elv_list_lock); 
static struct elevator_type *elevator_get(const char *name){	struct elevator_type *e = elevator_find(name);	if (!e)		return NULL;	if (!try_module_get(e->elevator_owner))		return NULL;	return e;}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/2824bc9328467127083c1325f54b67d298c333b2/elevator.c/clean/drivers/block/elevator.c