X-Git-Url: http://rtime.felk.cvut.cz/gitweb/lincan.git/blobdiff_plain/302f7b23bb1f40fd1c8f3010f6ff4d6a44ac566e..8a3b29f17483c98e116e6352176cd30b2c76019b:/lincan/src/devcommon.c

diff --git a/lincan/src/devcommon.c b/lincan/src/devcommon.c
index 2af0f86..bc4157d 100644
--- a/lincan/src/devcommon.c
+++ b/lincan/src/devcommon.c
@@ -36,7 +36,7 @@ void canqueue_wake_chip_worker(struct canque_ends_t *qends, struct canchip_t *ch
 /**
  * canqueue_notify_chip - notification callback handler for CAN chips ends of queues
  * @qends: pointer to the callback side ends structure
- * @qedge: edge which invoked notification 
+ * @qedge: edge which invoked notification
  * @what: notification type
  *
  * This function has to deal with more possible cases. It can be called from
@@ -59,7 +59,10 @@ void canqueue_notify_chip(struct canque_ends_t *qends, struct canque_edge_t *qed
 		case CANQUEUE_NOTIFY_PROC:
 		    #ifndef CAN_WITH_RTL
 			/*wake_up(&qends->endinfo.chipinfo.daemonq);*/
-			chip->chipspecops->wakeup_tx(chip, obj);
+			if(canque_fifo_test_fl(&qedge->fifo, READY)){
+				if ((chip) && (chip->flags & CHIP_ATTACHED))
+					chip->chipspecops->wakeup_tx(chip, obj);
+			}
 		    #else /*CAN_WITH_RTL*/
 			can_msgobj_set_fl(obj,TX_REQUEST);
 			canqueue_wake_chip_worker(qends, chip, obj);
@@ -81,7 +84,7 @@ void canqueue_notify_chip(struct canque_ends_t *qends, struct canque_edge_t *qed
 			can_msgobj_set_fl(obj,FILTCH_REQUEST);
 			canqueue_wake_chip_worker(qends, chip, obj);
 		    #endif /*CAN_WITH_RTL*/
-			
+
 			break;
 	}
 }
@@ -98,7 +101,7 @@ int canqueue_ends_init_chip(struct canque_ends_t *qends, struct canchip_t *chip,
 	int ret;
 	ret=canqueue_ends_init_gen(qends);
 	if(ret<0) return ret;
-	
+
 	qends->context=NULL;
     #ifndef CAN_WITH_RTL
 	init_waitqueue_head(&qends->endinfo.chipinfo.daemonq);
@@ -121,7 +124,7 @@ int canqueue_ends_init_chip(struct canque_ends_t *qends, struct canchip_t *chip,
 int canqueue_ends_done_chip(struct canque_ends_t *qends)
 {
 	int delayed;
-	
+
 	/* Finish or kill all outgoing edges listed in inends */
 	delayed=canqueue_ends_kill_inlist(qends, 1);
 	/* Kill all incoming edges listed in outends */