diff options
Diffstat (limited to 'drivers/media/video/videodev.c')
| -rw-r--r-- | drivers/media/video/videodev.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index b26ebaff226f4..88bf2af2a0e71 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, ret=vfd->vidioc_overlay(file, fh, *i); break; } -#ifdef HAVE_V4L1 +#ifdef CONFIG_VIDEO_V4L1_COMPAT /* --- streaming capture ------------------------------------- */ case VIDIOCGMBUF: { @@ -1512,6 +1512,7 @@ int video_register_device(struct video_device *vfd, int type, int nr) int i=0; int base; int end; + int ret; char *name_base; switch(type) @@ -1537,6 +1538,8 @@ int video_register_device(struct video_device *vfd, int type, int nr) name_base = "radio"; break; default: + printk(KERN_ERR "%s called with unknown type: %d\n", + __FUNCTION__, type); return -1; } @@ -1571,9 +1574,18 @@ int video_register_device(struct video_device *vfd, int type, int nr) vfd->class_dev.class = &video_class; vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor); sprintf(vfd->class_dev.class_id, "%s%d", name_base, i - base); - class_device_register(&vfd->class_dev); - class_device_create_file(&vfd->class_dev, - &class_device_attr_name); + ret = class_device_register(&vfd->class_dev); + if (ret < 0) { + printk(KERN_ERR "%s: class_device_register failed\n", + __FUNCTION__); + goto fail_minor; + } + ret = class_device_create_file(&vfd->class_dev, &class_device_attr_name); + if (ret < 0) { + printk(KERN_ERR "%s: class_device_create_file 'name' failed\n", + __FUNCTION__); + goto fail_classdev; + } #if 1 /* needed until all drivers are fixed */ @@ -1583,6 +1595,15 @@ int video_register_device(struct video_device *vfd, int type, int nr) "http://lwn.net/Articles/36850/\n", vfd->name); #endif return 0; + +fail_classdev: + class_device_unregister(&vfd->class_dev); +fail_minor: + mutex_lock(&videodev_lock); + video_device[vfd->minor] = NULL; + vfd->minor = -1; + mutex_unlock(&videodev_lock); + return ret; } /** |