aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/video/videodev.c
diff options
context:
space:
mode:
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 b26ebaff226..0fc90cd393f 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_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;
}
/**