diff options
Diffstat (limited to 'drivers/media/video/cx88/cx88-mpeg.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-mpeg.c | 60 |
1 files changed, 29 insertions, 31 deletions
diff --git a/drivers/media/video/cx88/cx88-mpeg.c b/drivers/media/video/cx88/cx88-mpeg.c index 1b1418241b4..11d9865e34f 100644 --- a/drivers/media/video/cx88/cx88-mpeg.c +++ b/drivers/media/video/cx88/cx88-mpeg.c @@ -594,24 +594,14 @@ EXPORT_SYMBOL(cx8802_get_device); struct cx8802_driver * cx8802_get_driver(struct cx8802_dev *dev, enum cx88_board_type btype) { - struct cx8802_dev *h = NULL; - struct cx8802_driver *d = NULL; + struct cx8802_driver *d; struct list_head *list; - struct list_head *list2; - - list_for_each(list,&cx8802_devlist) { - h = list_entry(list, struct cx8802_dev, devlist); - if (h != dev) - continue; - list_for_each(list2, &h->drvlist.devlist) { - d = list_entry(list2, struct cx8802_driver, devlist); + list_for_each(list, &dev->drvlist) { + d = list_entry(list, struct cx8802_driver, drvlist); - /* only unregister the correct driver type */ - if (d->type_id == btype) { - return d; - } - } + if (d->type_id == btype) + return d; } return NULL; @@ -717,7 +707,7 @@ int cx8802_register_driver(struct cx8802_driver *drv) if (err == 0) { i++; mutex_lock(&drv->core->lock); - list_add_tail(&driver->devlist,&h->drvlist.devlist); + list_add_tail(&driver->drvlist, &h->drvlist); mutex_unlock(&drv->core->lock); } else { printk(KERN_ERR @@ -757,8 +747,8 @@ int cx8802_unregister_driver(struct cx8802_driver *drv) h->pci->subsystem_device, h->core->board.name, h->core->boardnr); - list_for_each_safe(list2, q, &h->drvlist.devlist) { - d = list_entry(list2, struct cx8802_driver, devlist); + list_for_each_safe(list2, q, &h->drvlist) { + d = list_entry(list2, struct cx8802_driver, drvlist); /* only unregister the correct driver type */ if (d->type_id != drv->type_id) @@ -772,7 +762,6 @@ int cx8802_unregister_driver(struct cx8802_driver *drv) } else printk(KERN_ERR "%s/2: cx8802 driver remove " "failed (%d)\n", h->core->name, err); - } } @@ -810,7 +799,7 @@ static int __devinit cx8802_probe(struct pci_dev *pci_dev, if (err != 0) goto fail_free; - INIT_LIST_HEAD(&dev->drvlist.devlist); + INIT_LIST_HEAD(&dev->drvlist); list_add_tail(&dev->devlist,&cx8802_devlist); /* Maintain a reference so cx88-video can query the 8802 device. */ @@ -830,23 +819,32 @@ static int __devinit cx8802_probe(struct pci_dev *pci_dev, static void __devexit cx8802_remove(struct pci_dev *pci_dev) { struct cx8802_dev *dev; - struct cx8802_driver *h; - struct list_head *list; dev = pci_get_drvdata(pci_dev); dprintk( 1, "%s\n", __FUNCTION__); - list_for_each(list,&dev->drvlist.devlist) { - h = list_entry(list, struct cx8802_driver, devlist); - dprintk( 1, " ->driver\n"); - if (h->remove == NULL) { - printk(KERN_ERR "%s .. skipping driver, no probe function\n", __FUNCTION__); - continue; + if (!list_empty(&dev->drvlist)) { + struct list_head *list, *tmp; + struct cx8802_driver *drv; + int err; + + printk(KERN_WARNING "%s/2: Trying to remove cx8802 driver " + "while cx8802 sub-drivers still loaded?!\n", + dev->core->name); + + list_for_each_safe(list, tmp, &dev->drvlist) { + drv = list_entry(list, struct cx8802_driver, drvlist); + + err = drv->remove(drv); + if (err == 0) { + mutex_lock(&drv->core->lock); + list_del(list); + mutex_unlock(&drv->core->lock); + } else + printk(KERN_ERR "%s/2: cx8802 driver remove " + "failed (%d)\n", dev->core->name, err); } - printk(KERN_INFO "%s .. Removing driver type %d\n", __FUNCTION__, h->type_id); - cx8802_unregister_driver(h); - list_del(&dev->drvlist.devlist); } /* Destroy any 8802 reference. */ |