[media] cx23885: fix UNSET/TUNER_ABSENT confusion

Sometimes dev->tuner_type is compared to UNSET, sometimes to TUNER_ABSENT,
but these defines have different values.

Standardize to TUNER_ABSENT.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/pci/cx23885/cx23885-417.c

@@ -1266,7 +1266,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 	struct cx23885_fh  *fh  = file->private_data;
 	struct cx23885_dev *dev = fh->dev;
 
-	if (UNSET == dev->tuner_type)
+	if (dev->tuner_type == TUNER_ABSENT)
 		return -EINVAL;
 	if (0 != t->index)
 		return -EINVAL;
@@ -1284,7 +1284,7 @@ static int vidioc_s_tuner(struct file *file, void *priv,
 	struct cx23885_fh  *fh  = file->private_data;
 	struct cx23885_dev *dev = fh->dev;
 
-	if (UNSET == dev->tuner_type)
+	if (dev->tuner_type == TUNER_ABSENT)
 		return -EINVAL;
 
 	/* Update the A/V core */
@@ -1299,7 +1299,7 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 	struct cx23885_fh  *fh  = file->private_data;
 	struct cx23885_dev *dev = fh->dev;
 
-	if (UNSET == dev->tuner_type)
+	if (dev->tuner_type == TUNER_ABSENT)
 		return -EINVAL;
 	f->type = V4L2_TUNER_ANALOG_TV;
 	f->frequency = dev->freq;
@@ -1347,7 +1347,7 @@ static int vidioc_querycap(struct file *file, void  *priv,
 		V4L2_CAP_READWRITE     |
 		V4L2_CAP_STREAMING     |
 		0;
-	if (UNSET != dev->tuner_type)
+	if (dev->tuner_type != TUNER_ABSENT)
 		cap->capabilities |= V4L2_CAP_TUNER;
 
 	return 0;

drivers/media/pci/cx23885/cx23885-video.c

@@ -1157,7 +1157,7 @@ static int vidioc_querycap(struct file *file, void  *priv,
 		V4L2_CAP_READWRITE     |
 		V4L2_CAP_STREAMING     |
 		V4L2_CAP_VBI_CAPTURE;
-	if (UNSET != dev->tuner_type)
+	if (dev->tuner_type != TUNER_ABSENT)
 		cap->capabilities |= V4L2_CAP_TUNER;
 	return 0;
 }
@@ -1475,7 +1475,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 {
 	struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 
-	if (unlikely(UNSET == dev->tuner_type))
+	if (dev->tuner_type == TUNER_ABSENT)
 		return -EINVAL;
 	if (0 != t->index)
 		return -EINVAL;
@@ -1491,7 +1491,7 @@ static int vidioc_s_tuner(struct file *file, void *priv,
 {
 	struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 
-	if (UNSET == dev->tuner_type)
+	if (dev->tuner_type == TUNER_ABSENT)
 		return -EINVAL;
 	if (0 != t->index)
 		return -EINVAL;
@@ -1507,7 +1507,7 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 	struct cx23885_fh *fh = priv;
 	struct cx23885_dev *dev = fh->dev;
 
-	if (unlikely(UNSET == dev->tuner_type))
+	if (dev->tuner_type == TUNER_ABSENT)
 		return -EINVAL;
 
 	/* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
@@ -1523,7 +1523,7 @@ static int cx23885_set_freq(struct cx23885_dev *dev, const struct v4l2_frequency
 {
 	struct v4l2_control ctrl;
 
-	if (unlikely(UNSET == dev->tuner_type))
+	if (dev->tuner_type == TUNER_ABSENT)
 		return -EINVAL;
 	if (unlikely(f->tuner != 0))
 		return -EINVAL;