* Rewritten for new CAN queues by Pavel Pisa - OCERA team member
* email:pisa@cmp.felk.cvut.cz
* This software is released under the GPL-License.
- * Version lincan-0.2 9 Jul 2003
+ * Version lincan-0.3 17 Jun 2004
*/
#include "../include/can.h"
struct canuser_t *canuser = (struct canuser_t*)(file->private_data);
struct canque_ends_t *qends;
struct msgobj_t *obj;
+ can_spin_irqflags_t iflags;
if(!canuser || (canuser->magic != CAN_USER_MAGIC)){
CANMSG("can_close: bad canuser magic\n");
obj = canuser->msgobj;
qends = canuser->qends;
-
+
#ifdef CAN_ENABLE_KERN_FASYNC
can_fasync(-1, file, 0);
#endif /*CAN_ENABLE_KERN_FASYNC*/
+ can_spin_lock_irqsave(&canuser_manipulation_lock, iflags);
list_del(&canuser->peers);
+ can_spin_unlock_irqrestore(&canuser_manipulation_lock, iflags);
canuser->qends = NULL;
canqueue_ends_dispose_kern(qends, file->f_flags & O_SYNC);
kfree(canuser);
+ can_spin_lock_irqsave(&canuser_manipulation_lock, iflags);
if(atomic_dec_and_test(&obj->obj_used)){
can_msgobj_clear_fl(obj,OPENED);
- /* FIXME: what about clearing chip HW status, stopping sending messages etc? */
};
+ can_spin_unlock_irqrestore(&canuser_manipulation_lock, iflags);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,50))
MOD_DEC_USE_COUNT;