From bfffd7431c6e7661d13c3fd141863fde55c9338b Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 20 Dec 2013 02:32:21 -0300 Subject: [PATCH] [media] v4l: do not allow modulator ioctls for non-radio devices Modulator ioctls could be enabled mistakenly for non-radio devices. Currently those ioctls are only valid for radio. Fix it. Signed-off-by: Hans Verkuil Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/v4l2-core/v4l2-dev.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c index 98099e827614..95112f686ef0 100644 --- a/drivers/media/v4l2-core/v4l2-dev.c +++ b/drivers/media/v4l2-core/v4l2-dev.c @@ -553,6 +553,7 @@ static void determine_valid_ioctls(struct video_device *vdev) const struct v4l2_ioctl_ops *ops = vdev->ioctl_ops; bool is_vid = vdev->vfl_type == VFL_TYPE_GRABBER; bool is_vbi = vdev->vfl_type == VFL_TYPE_VBI; + bool is_radio = vdev->vfl_type == VFL_TYPE_RADIO; bool is_sdr = vdev->vfl_type == VFL_TYPE_SDR; bool is_rx = vdev->vfl_dir != VFL_DIR_TX; bool is_tx = vdev->vfl_dir != VFL_DIR_RX; @@ -726,8 +727,8 @@ static void determine_valid_ioctls(struct video_device *vdev) SET_VALID_IOCTL(ops, VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings); SET_VALID_IOCTL(ops, VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap); } - if (is_tx) { - /* transmitter only ioctls */ + if (is_tx && (is_radio || is_sdr)) { + /* radio transmitter only ioctls */ SET_VALID_IOCTL(ops, VIDIOC_G_MODULATOR, vidioc_g_modulator); SET_VALID_IOCTL(ops, VIDIOC_S_MODULATOR, vidioc_s_modulator); }