[media] vim2m: embed video_device
Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/platform/vim2m.c b/drivers/media/platform/vim2m.c
index d9d844a..4d6b4cc 100644
--- a/drivers/media/platform/vim2m.c
+++ b/drivers/media/platform/vim2m.c
@@ -142,7 +142,7 @@
struct vim2m_dev {
struct v4l2_device v4l2_dev;
- struct video_device *vfd;
+ struct video_device vfd;
atomic_t num_inst;
struct mutex dev_mutex;
@@ -968,7 +968,7 @@
.fops = &vim2m_fops,
.ioctl_ops = &vim2m_ioctl_ops,
.minor = -1,
- .release = video_device_release,
+ .release = video_device_release_empty,
};
static struct v4l2_m2m_ops m2m_ops = {
@@ -996,26 +996,19 @@
atomic_set(&dev->num_inst, 0);
mutex_init(&dev->dev_mutex);
- vfd = video_device_alloc();
- if (!vfd) {
- v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n");
- ret = -ENOMEM;
- goto unreg_dev;
- }
-
- *vfd = vim2m_videodev;
+ dev->vfd = vim2m_videodev;
+ vfd = &dev->vfd;
vfd->lock = &dev->dev_mutex;
vfd->v4l2_dev = &dev->v4l2_dev;
ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
if (ret) {
v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
- goto rel_vdev;
+ goto unreg_dev;
}
video_set_drvdata(vfd, dev);
snprintf(vfd->name, sizeof(vfd->name), "%s", vim2m_videodev.name);
- dev->vfd = vfd;
v4l2_info(&dev->v4l2_dev,
"Device registered as /dev/video%d\n", vfd->num);
@@ -1033,9 +1026,7 @@
err_m2m:
v4l2_m2m_release(dev->m2m_dev);
- video_unregister_device(dev->vfd);
-rel_vdev:
- video_device_release(vfd);
+ video_unregister_device(&dev->vfd);
unreg_dev:
v4l2_device_unregister(&dev->v4l2_dev);
@@ -1049,7 +1040,7 @@
v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_NAME);
v4l2_m2m_release(dev->m2m_dev);
del_timer_sync(&dev->timer);
- video_unregister_device(dev->vfd);
+ video_unregister_device(&dev->vfd);
v4l2_device_unregister(&dev->v4l2_dev);
return 0;