struct canuser_t *canuser;
struct canque_ends_t *qends;
struct canque_edge_t *edge;
+ can_spin_irqflags_t iflags;
if ( ((obj=objects_p[MINOR_NR]) == NULL) ||
((chip=objects_p[MINOR_NR]->hostchip) == NULL) ) {
atomic_inc(&obj->obj_used);
DEBUGMSG("Device %d opened %d times.\n", MINOR_NR, atomic_read(&obj->obj_used));
- obj->flags |= OBJ_OPENED;
+ can_msgobj_set_fl(obj,OPENED);
if (chip->flags & CHIP_CONFIGURED)
DEBUGMSG("Device is already configured.\n");
if (chip->chipspecops->pre_read_config(chip,obj)<0)
CANMSG("Error initializing chip for receiving\n");
- /* chip->flags |= OBJ_BUFFERS_ALLOCATED; */
-
} /* End of chip configuration */
canuser = (struct canuser_t *)kmalloc(sizeof(struct canuser_t), GFP_KERNEL);
if(canuser == NULL) goto no_canuser;
- canuser->file = file;
+ canuser->flags=0;
+ canuser->userinfo.fileinfo.file = file;
canuser->msgobj = obj;
canuser->magic = CAN_USER_MAGIC;
file->private_data = canuser;
canqueue_ends_init_kern(qends);
canuser->qends = qends;
+ /*required to synchronize with RT-Linux context*/
+ can_spin_lock_irqsave(&canuser_manipulation_lock, iflags);
list_add(&canuser->peers, &obj->obj_users);
+ can_spin_unlock_irqrestore(&canuser_manipulation_lock, iflags);
if(canqueue_connect_edge(edge=canque_new_edge_kern(MAX_BUF_LENGTH),
canuser->qends, obj->qends)<0) goto no_tx_qedge;