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authorShuah Khan <shuahkh@osg.samsung.com>2015-02-26 19:33:13 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-03-03 11:19:52 -0300
commit41071bb8c78e4d0b36c51c71b6620d74cb7e2ceb (patch)
tree3846c4fc407ef67b9607f4111db3d8feb3a4b20c
parentc5036d61e0bed3f4f51391a145638b426825e69c (diff)
[media] media: au0828 - embed vdev and vbi_dev structs in au0828_dev
Embed video_device structs vdev and vbi_dev in au0828_dev. With this change, dynamic allocation and error path logic in au0828_analog_register() is removed as it doesn't need to allocate and handle allocation errors. Unregister path doesn't need to free the now static video_device structures, hence, changed video_device.release in au0828_video_template to point to video_device_release_empty. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
-rw-r--r--drivers/media/usb/au0828/au0828-video.c64
-rw-r--r--drivers/media/usb/au0828/au0828.h4
2 files changed, 24 insertions, 44 deletions
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
index 61e525fcdcc3..bf990a931d4e 100644
--- a/drivers/media/usb/au0828/au0828-video.c
+++ b/drivers/media/usb/au0828/au0828-video.c
@@ -891,8 +891,8 @@ void au0828_analog_unregister(struct au0828_dev *dev)
{
dprintk(1, "au0828_analog_unregister called\n");
mutex_lock(&au0828_sysfs_lock);
- video_unregister_device(dev->vdev);
- video_unregister_device(dev->vbi_dev);
+ video_unregister_device(&dev->vdev);
+ video_unregister_device(&dev->vbi_dev);
mutex_unlock(&au0828_sysfs_lock);
}
@@ -1274,7 +1274,7 @@ static int vidioc_enum_input(struct file *file, void *priv,
input->audioset = 2;
}
- input->std = dev->vdev->tvnorms;
+ input->std = dev->vdev.tvnorms;
return 0;
}
@@ -1692,7 +1692,7 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
static const struct video_device au0828_video_template = {
.fops = &au0828_v4l_fops,
- .release = video_device_release,
+ .release = video_device_release_empty,
.ioctl_ops = &video_ioctl_ops,
.tvnorms = V4L2_STD_NTSC_M | V4L2_STD_PAL_M,
};
@@ -1802,52 +1802,36 @@ int au0828_analog_register(struct au0828_dev *dev,
dev->std = V4L2_STD_NTSC_M;
au0828_s_input(dev, 0);
- /* allocate and fill v4l2 video struct */
- dev->vdev = video_device_alloc();
- if (NULL == dev->vdev) {
- dprintk(1, "Can't allocate video_device.\n");
- return -ENOMEM;
- }
-
- /* allocate the VBI struct */
- dev->vbi_dev = video_device_alloc();
- if (NULL == dev->vbi_dev) {
- dprintk(1, "Can't allocate vbi_device.\n");
- ret = -ENOMEM;
- goto err_vdev;
- }
-
mutex_init(&dev->vb_queue_lock);
mutex_init(&dev->vb_vbi_queue_lock);
/* Fill the video capture device struct */
- *dev->vdev = au0828_video_template;
- dev->vdev->v4l2_dev = &dev->v4l2_dev;
- dev->vdev->lock = &dev->lock;
- dev->vdev->queue = &dev->vb_vidq;
- dev->vdev->queue->lock = &dev->vb_queue_lock;
- strcpy(dev->vdev->name, "au0828a video");
+ dev->vdev = au0828_video_template;
+ dev->vdev.v4l2_dev = &dev->v4l2_dev;
+ dev->vdev.lock = &dev->lock;
+ dev->vdev.queue = &dev->vb_vidq;
+ dev->vdev.queue->lock = &dev->vb_queue_lock;
+ strcpy(dev->vdev.name, "au0828a video");
/* Setup the VBI device */
- *dev->vbi_dev = au0828_video_template;
- dev->vbi_dev->v4l2_dev = &dev->v4l2_dev;
- dev->vbi_dev->lock = &dev->lock;
- dev->vbi_dev->queue = &dev->vb_vbiq;
- dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock;
- strcpy(dev->vbi_dev->name, "au0828a vbi");
+ dev->vbi_dev = au0828_video_template;
+ dev->vbi_dev.v4l2_dev = &dev->v4l2_dev;
+ dev->vbi_dev.lock = &dev->lock;
+ dev->vbi_dev.queue = &dev->vb_vbiq;
+ dev->vbi_dev.queue->lock = &dev->vb_vbi_queue_lock;
+ strcpy(dev->vbi_dev.name, "au0828a vbi");
/* initialize videobuf2 stuff */
retval = au0828_vb2_setup(dev);
if (retval != 0) {
dprintk(1, "unable to setup videobuf2 queues (error = %d).\n",
retval);
- ret = -ENODEV;
- goto err_vbi_dev;
+ return -ENODEV;
}
/* Register the v4l2 device */
- video_set_drvdata(dev->vdev, dev);
- retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER, -1);
+ video_set_drvdata(&dev->vdev, dev);
+ retval = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
if (retval != 0) {
dprintk(1, "unable to register video device (error = %d).\n",
retval);
@@ -1856,8 +1840,8 @@ int au0828_analog_register(struct au0828_dev *dev,
}
/* Register the vbi device */
- video_set_drvdata(dev->vbi_dev, dev);
- retval = video_register_device(dev->vbi_dev, VFL_TYPE_VBI, -1);
+ video_set_drvdata(&dev->vbi_dev, dev);
+ retval = video_register_device(&dev->vbi_dev, VFL_TYPE_VBI, -1);
if (retval != 0) {
dprintk(1, "unable to register vbi device (error = %d).\n",
retval);
@@ -1870,14 +1854,10 @@ int au0828_analog_register(struct au0828_dev *dev,
return 0;
err_reg_vbi_dev:
- video_unregister_device(dev->vdev);
+ video_unregister_device(&dev->vdev);
err_reg_vdev:
vb2_queue_release(&dev->vb_vidq);
vb2_queue_release(&dev->vb_vbiq);
-err_vbi_dev:
- video_device_release(dev->vbi_dev);
-err_vdev:
- video_device_release(dev->vdev);
return ret;
}
diff --git a/drivers/media/usb/au0828/au0828.h b/drivers/media/usb/au0828/au0828.h
index eb1518742ae6..3b480005ce3b 100644
--- a/drivers/media/usb/au0828/au0828.h
+++ b/drivers/media/usb/au0828/au0828.h
@@ -209,8 +209,8 @@ struct au0828_dev {
struct au0828_rc *ir;
#endif
- struct video_device *vdev;
- struct video_device *vbi_dev;
+ struct video_device vdev;
+ struct video_device vbi_dev;
/* Videobuf2 */
struct vb2_queue vb_vidq;

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