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media: cedrus: Fix initialization order 

Currently, MEDIA_IOC_G_TOPOLOGY ioctl on cedrus fails due to incorrect
initialization order. Fix that by moving video_register_device() before
v4l2_m2m_register_media_controller() and while at it, fix error path.

Reported-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Jernej Skrabec 2019-04-07 14:47:28 -04:00 committed by Mauro Carvalho Chehab
parent dad7e270ba
commit bac875349f
1 changed files with 13 additions and 13 deletions
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26
drivers/staging/media/sunxi/cedrus/cedrus.c
View File

@ -300,7 +300,7 @@ static int cedrus_probe(struct platform_device *pdev)
"Failed to initialize V4L2 M2M device\n");
ret = PTR_ERR(dev->m2m_dev);
goto err_video;
goto err_v4l2;
}
dev->mdev.dev = &pdev->dev;
@ -310,23 +310,23 @@ static int cedrus_probe(struct platform_device *pdev)
dev->mdev.ops = &cedrus_m2m_media_ops;
dev->v4l2_dev.mdev = &dev->mdev;
ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
if (ret) {
v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
goto err_m2m;
}
v4l2_info(&dev->v4l2_dev,
"Device registered as /dev/video%d\n", vfd->num);
ret = v4l2_m2m_register_media_controller(dev->m2m_dev, vfd,
MEDIA_ENT_F_PROC_VIDEO_DECODER);
if (ret) {
v4l2_err(&dev->v4l2_dev,
"Failed to initialize V4L2 M2M media controller\n");
goto err_m2m;
goto err_video;
}
ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
if (ret) {
v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
goto err_v4l2;
}
v4l2_info(&dev->v4l2_dev,
"Device registered as /dev/video%d\n", vfd->num);
ret = media_device_register(&dev->mdev);
if (ret) {
v4l2_err(&dev->v4l2_dev, "Failed to register media device\n");
@ -339,10 +339,10 @@ static int cedrus_probe(struct platform_device *pdev)
err_m2m_mc:
v4l2_m2m_unregister_media_controller(dev->m2m_dev);
err_m2m:
v4l2_m2m_release(dev->m2m_dev);
err_video:
video_unregister_device(&dev->vfd);
err_m2m:
v4l2_m2m_release(dev->m2m_dev);
err_v4l2:
v4l2_device_unregister(&dev->v4l2_dev);