diff options
Diffstat (limited to 'drivers/media/video/cx18/cx18-driver.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 434cc7fdee3..752ca908ccb 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -56,6 +56,9 @@ struct cx18 *cx18_cards[CX18_MAX_CARDS]; /* Protects cx18_cards_active */ DEFINE_SPINLOCK(cx18_cards_lock); +/* Queue for deferrable IRQ handling work for all cx18 cards in system */ +struct workqueue_struct *cx18_work_queue; + /* add your revision and whatnot here */ static struct pci_device_id cx18_pci_tbl[] __devinitdata = { {PCI_VENDOR_ID_CX, PCI_DEVICE_ID_CX23418, @@ -920,6 +923,13 @@ int cx18_init_on_first_open(struct cx18 *cx) return 0; } +static void cx18_cancel_epu_work_orders(struct cx18 *cx) +{ + int i; + for (i = 0; i < CX18_MAX_EPU_WORK_ORDERS; i++) + cancel_work_sync(&cx->epu_work_order[i].work); +} + static void cx18_remove(struct pci_dev *pci_dev) { struct cx18 *cx = pci_get_drvdata(pci_dev); @@ -937,7 +947,7 @@ static void cx18_remove(struct pci_dev *pci_dev) cx18_halt_firmware(cx); - flush_scheduled_work(); + cx18_cancel_epu_work_orders(cx); cx18_streams_cleanup(cx, 1); @@ -981,8 +991,17 @@ static int module_start(void) printk(KERN_INFO "cx18: Debug value must be >= 0 and <= 511!\n"); } + cx18_work_queue = create_singlethread_workqueue("cx18"); + if (cx18_work_queue == NULL) { + printk(KERN_ERR + "cx18: Unable to create work hander thread\n"); + return -ENOMEM; + } + if (pci_register_driver(&cx18_pci_driver)) { printk(KERN_ERR "cx18: Error detecting PCI card\n"); + destroy_workqueue(cx18_work_queue); + cx18_work_queue = NULL; return -ENODEV; } printk(KERN_INFO "cx18: End initialization\n"); @@ -995,11 +1014,15 @@ static void module_cleanup(void) pci_unregister_driver(&cx18_pci_driver); + destroy_workqueue(cx18_work_queue); + cx18_work_queue = NULL; + for (i = 0; i < cx18_cards_active; i++) { if (cx18_cards[i] == NULL) continue; kfree(cx18_cards[i]); } + } module_init(module_start); |