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V4L/DVB (8784): v4l2-dev: make the video_device's release callback mandatory

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Now that all drivers set the release callback in the video_device
struct we can put in a BUG_ON in video_register_device to ensure that
the callback is always there.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2008-08-23 06:27:59 -03:00 committed by Mauro Carvalho Chehab
parent aa5e90af7d
commit d6e7497eaf
1 changed files with 2 additions and 14 deletions
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16
drivers/media/video/v4l2-dev.c
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@ -84,11 +84,6 @@ static void video_release(struct device *cd)
{
struct video_device *vfd = container_of(cd, struct video_device, dev);
#if 1
/* needed until all drivers are fixed */
if (!vfd->release)
return;
#endif
vfd->release(vfd);
}
@ -233,8 +228,8 @@ int video_register_device_index(struct video_device *vfd, int type, int nr,
int ret;
char *name_base;
if (vfd == NULL)
return -EINVAL;
/* the release callback MUST be present */
BUG_ON(!vfd->release);
if (vfd == NULL)
return -EINVAL;
@ -312,13 +307,6 @@ int video_register_device_index(struct video_device *vfd, int type, int nr,
goto fail_minor;
}
#if 1
/* needed until all drivers are fixed */
if (!vfd->release)
printk(KERN_WARNING "videodev: \"%s\" has no release callback. "
"Please fix your driver for proper sysfs support, see "
"http://lwn.net/Articles/36850/\n", vfd->name);
#endif
return 0;
fail_minor: