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path: root/drivers/media/video/videodev.c
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Diffstat (limited to 'drivers/media/video/videodev.c')
-rw-r--r--drivers/media/video/videodev.c29
1 files changed, 25 insertions, 4 deletions
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index b26ebaff226f..0fc90cd393f6 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -760,7 +760,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
760 ret=vfd->vidioc_overlay(file, fh, *i); 760 ret=vfd->vidioc_overlay(file, fh, *i);
761 break; 761 break;
762 } 762 }
763#ifdef HAVE_V4L1 763#ifdef CONFIG_V4L1_COMPAT
764 /* --- streaming capture ------------------------------------- */ 764 /* --- streaming capture ------------------------------------- */
765 case VIDIOCGMBUF: 765 case VIDIOCGMBUF:
766 { 766 {
@@ -1512,6 +1512,7 @@ int video_register_device(struct video_device *vfd, int type, int nr)
1512 int i=0; 1512 int i=0;
1513 int base; 1513 int base;
1514 int end; 1514 int end;
1515 int ret;
1515 char *name_base; 1516 char *name_base;
1516 1517
1517 switch(type) 1518 switch(type)
@@ -1537,6 +1538,8 @@ int video_register_device(struct video_device *vfd, int type, int nr)
1537 name_base = "radio"; 1538 name_base = "radio";
1538 break; 1539 break;
1539 default: 1540 default:
1541 printk(KERN_ERR "%s called with unknown type: %d\n",
1542 __FUNCTION__, type);
1540 return -1; 1543 return -1;
1541 } 1544 }
1542 1545
@@ -1571,9 +1574,18 @@ int video_register_device(struct video_device *vfd, int type, int nr)
1571 vfd->class_dev.class = &video_class; 1574 vfd->class_dev.class = &video_class;
1572 vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); 1575 vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor);
1573 sprintf(vfd->class_dev.class_id, "%s%d", name_base, i - base); 1576 sprintf(vfd->class_dev.class_id, "%s%d", name_base, i - base);
1574 class_device_register(&vfd->class_dev); 1577 ret = class_device_register(&vfd->class_dev);
1575 class_device_create_file(&vfd->class_dev, 1578 if (ret < 0) {
1576 &class_device_attr_name); 1579 printk(KERN_ERR "%s: class_device_register failed\n",
1580 __FUNCTION__);
1581 goto fail_minor;
1582 }
1583 ret = class_device_create_file(&vfd->class_dev, &class_device_attr_name);
1584 if (ret < 0) {
1585 printk(KERN_ERR "%s: class_device_create_file 'name' failed\n",
1586 __FUNCTION__);
1587 goto fail_classdev;
1588 }
1577 1589
1578#if 1 1590#if 1
1579 /* needed until all drivers are fixed */ 1591 /* needed until all drivers are fixed */
@@ -1583,6 +1595,15 @@ int video_register_device(struct video_device *vfd, int type, int nr)
1583 "http://lwn.net/Articles/36850/\n", vfd->name); 1595 "http://lwn.net/Articles/36850/\n", vfd->name);
1584#endif 1596#endif
1585 return 0; 1597 return 0;
1598
1599fail_classdev:
1600 class_device_unregister(&vfd->class_dev);
1601fail_minor:
1602 mutex_lock(&videodev_lock);
1603 video_device[vfd->minor] = NULL;
1604 vfd->minor = -1;
1605 mutex_unlock(&videodev_lock);
1606 return ret;
1586} 1607}
1587 1608
1588/** 1609/**