--- linux-2.26.8-rc5/drivers/media/video/gspca/gspca.h.orig 2008-11-19 11:10:11.000000000 +0100 +++ linux-2.26.8-rc5/drivers/media/video/gspca/gspca.h 2008-11-19 11:16:58.000000000 +0100 @@ -120,8 +120,8 @@ }; struct gspca_dev { - struct video_device vdev; /* !! must be the first item */ - struct file_operations fops; + struct video_device *vdev; + struct module *module; /* subdriver handling the device */ struct usb_device *dev; struct kref kref; struct file *capt_file; /* file doing video capture */ --- linux-2.26.8-rc5/drivers/media/video/gspca/gspca.c.orig 2008-11-19 11:10:02.000000000 +0100 +++ linux-2.26.8-rc5/drivers/media/video/gspca/gspca.c 2008-11-19 11:19:57.000000000 +0100 @@ -863,7 +863,7 @@ int ret; PDEBUG(D_STREAM, "%s open", current->comm); - gspca_dev = (struct gspca_dev *) video_devdata(file); + gspca_dev = video_drvdata(file); if (mutex_lock_interruptible(&gspca_dev->queue_lock)) return -ERESTARTSYS; if (!gspca_dev->present) { @@ -875,6 +875,13 @@ ret = -EBUSY; goto out; } + + /* protect the subdriver against rmmod */ + if (!try_module_get(gspca_dev->module)) { + ret = -ENODEV; + goto out; + } + gspca_dev->users++; /* one more user */ @@ -884,10 +891,10 @@ #ifdef GSPCA_DEBUG /* activate the v4l2 debug */ if (gspca_debug & D_V4L2) - gspca_dev->vdev.debug |= V4L2_DEBUG_IOCTL + gspca_dev->vdev->debug |= V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG; else - gspca_dev->vdev.debug &= ~(V4L2_DEBUG_IOCTL + gspca_dev->vdev->debug &= ~(V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG); #endif ret = 0; @@ -921,6 +928,7 @@ gspca_dev->memory = GSPCA_MEMORY_NO; } file->private_data = NULL; + module_put(gspca_dev->module); mutex_unlock(&gspca_dev->queue_lock); PDEBUG(D_STREAM, "close done"); @@ -1748,11 +1756,6 @@ return ret; } -static void dev_release(struct video_device *vfd) -{ - /* nothing */ -} - static struct file_operations dev_fops = { .owner = THIS_MODULE, .open = dev_open, @@ -1800,7 +1803,7 @@ .name = "gspca main driver", .fops = &dev_fops, .ioctl_ops = &dev_ioctl_ops, - .release = dev_release, /* mandatory */ + .release = video_device_release, .minor = -1, }; @@ -1869,17 +1872,18 @@ init_waitqueue_head(&gspca_dev->wq); /* init video stuff */ - memcpy(&gspca_dev->vdev, &gspca_template, sizeof gspca_template); - gspca_dev->vdev.parent = &dev->dev; - memcpy(&gspca_dev->fops, &dev_fops, sizeof gspca_dev->fops); - gspca_dev->vdev.fops = &gspca_dev->fops; - gspca_dev->fops.owner = module; /* module protection */ + gspca_dev->vdev = video_device_alloc(); + memcpy(gspca_dev->vdev, &gspca_template, sizeof gspca_template); + gspca_dev->vdev->parent = &dev->dev; + gspca_dev->module = module; gspca_dev->present = 1; - ret = video_register_device(&gspca_dev->vdev, + video_set_drvdata(gspca_dev->vdev, gspca_dev); + ret = video_register_device(gspca_dev->vdev, VFL_TYPE_GRABBER, video_nr); if (ret < 0) { err("video_register_device err %d", ret); + video_device_release(gspca_dev->vdev); goto out; } @@ -1887,7 +1891,8 @@ PDEBUG(D_PROBE, "probe ok"); return 0; out: - kref_put(&gspca_dev->kref, gspca_delete); + kfree(gspca_dev->usb_buf); + kfree(gspca_dev); return ret; } EXPORT_SYMBOL(gspca_dev_probe); @@ -1905,7 +1910,7 @@ usb_set_intfdata(intf, NULL); /* We don't want people trying to open up the device */ - video_unregister_device(&gspca_dev->vdev); + video_unregister_device(gspca_dev->vdev); gspca_dev->present = 0; gspca_dev->streaming = 0;