diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c
index 95f92ea4dbd5..498049fa43e4 100644
--- a/drivers/media/v4l2-core/v4l2-dev.c
+++ b/drivers/media/v4l2-core/v4l2-dev.c
@@ -609,7 +609,7 @@ static void determine_valid_ioctls(struct video_device *vdev)
 	SET_VALID_IOCTL(ops, VIDIOC_S_FBUF, vidioc_s_fbuf);
 	SET_VALID_IOCTL(ops, VIDIOC_STREAMON, vidioc_streamon);
 	SET_VALID_IOCTL(ops, VIDIOC_STREAMOFF, vidioc_streamoff);
-	if (vdev->tvnorms)
+	if (ops->vidioc_s_std)
 		set_bit(_IOC_NR(VIDIOC_ENUMSTD), valid_ioctls);
 	if (ops->vidioc_g_std || vdev->current_norm)
 		set_bit(_IOC_NR(VIDIOC_G_STD), valid_ioctls);
@@ -663,7 +663,7 @@ static void determine_valid_ioctls(struct video_device *vdev)
 	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 &&
-					(ops->vidioc_g_std || vdev->tvnorms)))
+					(ops->vidioc_g_std || vdev->current_norm)))
 		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);
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 2f26e9496a3b..f3ced2513b2f 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1304,6 +1304,11 @@ static int v4l_enumstd(const struct v4l2_ioctl_ops *ops,
 	unsigned int index = p->index, i, j = 0;
 	const char *descr = "";
 
+	/* Return -ENODATA if the tvnorms for the current input
+	   or output is 0, meaning that it doesn't support this API. */
+	if (id == 0)
+		return -ENODATA;
+
 	/* Return norm array in a canonical way */
 	for (i = 0; i <= index && id; i++) {
 		/* last std value in the standards array is 0, so this