media: adv7511-v4l2: correctly report EDIDs of 1 block

If the EDID has an odd number of blocks (usually just 1, but the
same problem occurs with 3 blocks), then VIDIOC_G_EDID reported 2
(or 4) blocks. Fix this.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/i2c/adv7511-v4l2.c

@@ -1196,18 +1196,18 @@ static int adv7511_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
 		return -EINVAL;
 
 	if (edid->start_block == 0 && edid->blocks == 0) {
-		edid->blocks = state->edid.segments * 2;
+		edid->blocks = state->edid.blocks;
 		return 0;
 	}
 
-	if (state->edid.segments == 0)
+	if (state->edid.blocks == 0)
 		return -ENODATA;
 
-	if (edid->start_block >= state->edid.segments * 2)
+	if (edid->start_block >= state->edid.blocks)
 		return -EINVAL;
 
-	if (edid->start_block + edid->blocks > state->edid.segments * 2)
-		edid->blocks = state->edid.segments * 2 - edid->start_block;
+	if (edid->start_block + edid->blocks > state->edid.blocks)
+		edid->blocks = state->edid.blocks - edid->start_block;
 
 	memcpy(edid->edid, &state->edid.data[edid->start_block * 128],
 	       128 * edid->blocks);