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authorHans Verkuil <hans.verkuil@cisco.com>2012-07-19 08:49:25 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-07-30 19:20:44 -0300
commit837c7e4256d5285700fe0d500eeb15801b55bb0e (patch)
tree1707fa8ce2bdf35e08d4b9d850ded84ae1a3f91f /drivers/media/video/v4l2-dev.c
parent47556ffaf212273ca65ce2d3177d4ff2f116db4d (diff)
[media] v4l2-dev: G_PARM was incorrectly enabled for all video nodes
G_PARM should only be enabled if: - vidioc_g_parm is present - or: it is a video node and vidioc_g_std or tvnorms are set. Without this additional check v4l2-compliance would complain about being able to use g_parm when it didn't expect it. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-dev.c')
-rw-r--r--drivers/media/video/v4l2-dev.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index af70f931727c..1b2f1c52e6c3 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -697,7 +697,8 @@ static void determine_valid_ioctls(struct video_device *vdev)
SET_VALID_IOCTL(ops, VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd);
SET_VALID_IOCTL(ops, VIDIOC_DECODER_CMD, vidioc_decoder_cmd);
SET_VALID_IOCTL(ops, VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd);
- if (ops->vidioc_g_parm || vdev->vfl_type == VFL_TYPE_GRABBER)
+ if (ops->vidioc_g_parm || (vdev->vfl_type == VFL_TYPE_GRABBER &&
+ (ops->vidioc_g_std || vdev->tvnorms)))
set_bit(_IOC_NR(VIDIOC_G_PARM), valid_ioctls);
SET_VALID_IOCTL(ops, VIDIOC_S_PARM, vidioc_s_parm);
SET_VALID_IOCTL(ops, VIDIOC_G_TUNER, vidioc_g_tuner);