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[media] media: davinci: vpfe_capture: 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: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Lad, Prabhakar 2015-03-10 14:53:05 -03:00 committed by Mauro Carvalho Chehab
parent 60acf18768
commit 03c278f01d
2 changed files with 8 additions and 20 deletions
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26
drivers/media/platform/davinci/vpfe_capture.c
View File

@ -1871,16 +1871,9 @@ static int vpfe_probe(struct platform_device *pdev)
goto probe_free_ccdc_cfg_mem;
}
/* Allocate memory for video device */
vfd = video_device_alloc();
if (NULL == vfd) {
ret = -ENOMEM;
v4l2_err(pdev->dev.driver, "Unable to alloc video device\n");
goto probe_out_release_irq;
}
vfd = &vpfe_dev->video_dev;
/* Initialize field of video device */
vfd->release = video_device_release;
vfd->release = video_device_release_empty;
vfd->fops = &vpfe_fops;
vfd->ioctl_ops = &vpfe_ioctl_ops;
vfd->tvnorms = 0;
@ -1891,14 +1884,12 @@ static int vpfe_probe(struct platform_device *pdev)
(VPFE_CAPTURE_VERSION_CODE >> 16) & 0xff,
(VPFE_CAPTURE_VERSION_CODE >> 8) & 0xff,
(VPFE_CAPTURE_VERSION_CODE) & 0xff);
/* Set video_dev to the video device */
vpfe_dev->video_dev = vfd;
ret = v4l2_device_register(&pdev->dev, &vpfe_dev->v4l2_dev);
if (ret) {
v4l2_err(pdev->dev.driver,
"Unable to register v4l2 device.\n");
goto probe_out_video_release;
goto probe_out_release_irq;
}
v4l2_info(&vpfe_dev->v4l2_dev, "v4l2 device registered\n");
spin_lock_init(&vpfe_dev->irqlock);
@ -1914,7 +1905,7 @@ static int vpfe_probe(struct platform_device *pdev)
v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
"video_dev=%p\n", &vpfe_dev->video_dev);
vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
ret = video_register_device(vpfe_dev->video_dev,
ret = video_register_device(&vpfe_dev->video_dev,
VFL_TYPE_GRABBER, -1);
if (ret) {
@ -1927,7 +1918,7 @@ static int vpfe_probe(struct platform_device *pdev)
/* set the driver data in platform device */
platform_set_drvdata(pdev, vpfe_dev);
/* set driver private data */
video_set_drvdata(vpfe_dev->video_dev, vpfe_dev);
video_set_drvdata(&vpfe_dev->video_dev, vpfe_dev);
i2c_adap = i2c_get_adapter(vpfe_cfg->i2c_adapter_id);
num_subdevs = vpfe_cfg->num_subdevs;
vpfe_dev->sd = kmalloc(sizeof(struct v4l2_subdev *) * num_subdevs,
@ -1979,12 +1970,9 @@ static int vpfe_probe(struct platform_device *pdev)
probe_sd_out:
kfree(vpfe_dev->sd);
probe_out_video_unregister:
video_unregister_device(vpfe_dev->video_dev);
video_unregister_device(&vpfe_dev->video_dev);
probe_out_v4l2_unregister:
v4l2_device_unregister(&vpfe_dev->v4l2_dev);
probe_out_video_release:
if (!video_is_registered(vpfe_dev->video_dev))
video_device_release(vpfe_dev->video_dev);
probe_out_release_irq:
free_irq(vpfe_dev->ccdc_irq0, vpfe_dev);
probe_free_ccdc_cfg_mem:
@ -2007,7 +1995,7 @@ static int vpfe_remove(struct platform_device *pdev)
free_irq(vpfe_dev->ccdc_irq0, vpfe_dev);
kfree(vpfe_dev->sd);
v4l2_device_unregister(&vpfe_dev->v4l2_dev);
video_unregister_device(vpfe_dev->video_dev);
video_unregister_device(&vpfe_dev->video_dev);
kfree(vpfe_dev);
kfree(ccdc_cfg);
return 0;

2
include/media/davinci/vpfe_capture.h
View File

@ -102,7 +102,7 @@ struct vpfe_config {
struct vpfe_device {
/* V4l2 specific parameters */
/* Identifies video device for this channel */
struct video_device *video_dev;
struct video_device video_dev;
/* sub devices */
struct v4l2_subdev **sd;
/* vpfe cfg */