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media: rockchip/vpu: Do not request id 0 for our video device 

Pass -1 to video_register_device() to let the core assign the first
free id instead of trying to get id 0.
In practice it doesn't make a difference since video_register_device()
is not strict about id requests and will anyway pick the first free id
starting at the id passed in argument, and passing -1 has the same
effect as passing 0. But let's comply with the API doc and pass -1
here.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.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:
Jonas Karlman 2019-04-25 03:12:27 -04:00 committed by Mauro Carvalho Chehab
parent 1199fa8c0d
commit 76f2db08e0
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/media/rockchip/vpu/rockchip_vpu_drv.c
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@ -352,7 +352,7 @@ static int rockchip_vpu_video_device_register(struct rockchip_vpu_dev *vpu)
vpu->vfd_enc = vfd;
video_set_drvdata(vfd, vpu);
ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
if (ret) {
v4l2_err(&vpu->v4l2_dev, "Failed to register video device\n");
goto err_free_dev;