media: vicodec: stateless codecs do not have EOS and SOURCE_CHANGE events

Return an error when attempting to subscribe to those events
for a stateless codec.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/platform/vicodec/vicodec-core.c b/drivers/media/platform/vicodec/vicodec-core.c
index ce7f7bf1b998a98ed2fe7643917f19368dc47f43..91cd0c1dbede5c79a4e60f3fda13c8854e01a610 100644 (file)
--- a/drivers/media/platform/vicodec/vicodec-core.c
+++ b/drivers/media/platform/vicodec/vicodec-core.c
@@ -1293,6 +1293,8 @@ static int vicodec_subscribe_event(struct v4l2_fh *fh,
                        return -EINVAL;
                /* fall through */
        case V4L2_EVENT_EOS:
+               if (ctx->is_stateless)
+                       return -EINVAL;
                return v4l2_event_subscribe(fh, sub, 0, NULL);
        default:
                return v4l2_ctrl_subscribe_event(fh, sub);