[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 <hans.verkuil@cisco.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

1 files 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);
         }