diff options
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-dev.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-dev.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c index 0301fe426a43..c080dcc75393 100644 --- a/drivers/media/v4l2-core/v4l2-dev.c +++ b/drivers/media/v4l2-core/v4l2-dev.c @@ -10,7 +10,7 @@ * 2 of the License, or (at your option) any later version. * * Authors: Alan Cox, <alan@lxorguk.ukuu.org.uk> (version 1) - * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2) + * Mauro Carvalho Chehab <mchehab@kernel.org> (version 2) * * Fixes: 20000516 Claudio Matsuoka <claudio@conectiva.com> * - Added procfs support @@ -939,10 +939,14 @@ int __video_register_device(struct video_device *vdev, #endif vdev->minor = i + minor_offset; vdev->num = nr; - devnode_set(vdev); /* Should not happen since we thought this minor was free */ - WARN_ON(video_device[vdev->minor] != NULL); + if (WARN_ON(video_device[vdev->minor])) { + mutex_unlock(&videodev_lock); + printk(KERN_ERR "video_device not empty!\n"); + return -ENFILE; + } + devnode_set(vdev); vdev->index = get_index(vdev); video_device[vdev->minor] = vdev; mutex_unlock(&videodev_lock); @@ -1068,7 +1072,7 @@ static void __exit videodev_exit(void) subsys_initcall(videodev_init); module_exit(videodev_exit) -MODULE_AUTHOR("Alan Cox, Mauro Carvalho Chehab <mchehab@infradead.org>"); +MODULE_AUTHOR("Alan Cox, Mauro Carvalho Chehab <mchehab@kernel.org>"); MODULE_DESCRIPTION("Device registrar for Video4Linux drivers v2"); MODULE_LICENSE("GPL"); MODULE_ALIAS_CHARDEV_MAJOR(VIDEO_MAJOR); |
