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[media] m2m-deinterlace: embed video_device

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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: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-03-09 13:34:05 -03:00 committed by Mauro Carvalho Chehab
parent e239129ca7
commit 650e629bf7
1 changed files with 6 additions and 15 deletions
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21
drivers/media/platform/m2m-deinterlace.c
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@ -127,7 +127,7 @@ static struct deinterlace_fmt *find_format(struct v4l2_format *f)
struct deinterlace_dev {
struct v4l2_device v4l2_dev;
struct video_device *vfd;
struct video_device vfd;
atomic_t busy;
struct mutex dev_mutex;
@ -983,7 +983,7 @@ static struct video_device deinterlace_videodev = {
.fops = &deinterlace_fops,
.ioctl_ops = &deinterlace_ioctl_ops,
.minor = -1,
.release = video_device_release,
.release = video_device_release_empty,
.vfl_dir = VFL_DIR_M2M,
};
@ -1026,13 +1026,7 @@ static int deinterlace_probe(struct platform_device *pdev)
atomic_set(&pcdev->busy, 0);
mutex_init(&pcdev->dev_mutex);
vfd = video_device_alloc();
if (!vfd) {
v4l2_err(&pcdev->v4l2_dev, "Failed to allocate video device\n");
ret = -ENOMEM;
goto unreg_dev;
}
vfd = &pcdev->vfd;
*vfd = deinterlace_videodev;
vfd->lock = &pcdev->dev_mutex;
vfd->v4l2_dev = &pcdev->v4l2_dev;
@ -1040,12 +1034,11 @@ static int deinterlace_probe(struct platform_device *pdev)
ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
if (ret) {
v4l2_err(&pcdev->v4l2_dev, "Failed to register video device\n");
goto rel_vdev;
goto unreg_dev;
}
video_set_drvdata(vfd, pcdev);
snprintf(vfd->name, sizeof(vfd->name), "%s", deinterlace_videodev.name);
pcdev->vfd = vfd;
v4l2_info(&pcdev->v4l2_dev, MEM2MEM_TEST_MODULE_NAME
" Device registered as /dev/video%d\n", vfd->num);
@ -1069,11 +1062,9 @@ static int deinterlace_probe(struct platform_device *pdev)
v4l2_m2m_release(pcdev->m2m_dev);
err_m2m:
video_unregister_device(pcdev->vfd);
video_unregister_device(&pcdev->vfd);
err_ctx:
vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
rel_vdev:
video_device_release(vfd);
unreg_dev:
v4l2_device_unregister(&pcdev->v4l2_dev);
rel_dma:
@ -1088,7 +1079,7 @@ static int deinterlace_remove(struct platform_device *pdev)
v4l2_info(&pcdev->v4l2_dev, "Removing " MEM2MEM_TEST_MODULE_NAME);
v4l2_m2m_release(pcdev->m2m_dev);
video_unregister_device(pcdev->vfd);
video_unregister_device(&pcdev->vfd);
v4l2_device_unregister(&pcdev->v4l2_dev);
vb2_dma_contig_cleanup_ctx(pcdev->alloc_ctx);
dma_release_channel(pcdev->dma_chan);