[media] ivtv: Fix AUDIO_(BILINGUAL_)CHANNEL_SELECT regression

When I converted ivtv to the new decoder API I introduced a regression in the
support of the old channel select API.

Thanks to Martin Dauskardt for reporting this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c
index 5452bee..989e556 100644 (file)
--- a/drivers/media/video/ivtv/ivtv-ioctl.c
+++ b/drivers/media/video/ivtv/ivtv-ioctl.c
@@ -1763,13 +1763,13 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
                IVTV_DEBUG_IOCTL("AUDIO_CHANNEL_SELECT\n");
                if (iarg > AUDIO_STEREO_SWAPPED)
                        return -EINVAL;
-               return v4l2_ctrl_s_ctrl(itv->ctrl_audio_playback, iarg);
+               return v4l2_ctrl_s_ctrl(itv->ctrl_audio_playback, iarg + 1);
 
        case AUDIO_BILINGUAL_CHANNEL_SELECT:
                IVTV_DEBUG_IOCTL("AUDIO_BILINGUAL_CHANNEL_SELECT\n");
                if (iarg > AUDIO_STEREO_SWAPPED)
                        return -EINVAL;
-               return v4l2_ctrl_s_ctrl(itv->ctrl_audio_multilingual_playback, iarg);
+               return v4l2_ctrl_s_ctrl(itv->ctrl_audio_multilingual_playback, iarg + 1);
 
        default:
                return -EINVAL;