[libcamera-devel] [RFC PATCH 02/12] libcamera: pipeline: uvcvideo: Report control errors

[Kieran Bingham]

Report an error when failing to process controls, but still allow the
request to process and complete where possible.

The Request ControlError flag is raised on the request.

Bug: https://bugs.libcamera.org/show_bug.cgi?id=135
Signed-off-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
---
 src/libcamera/pipeline/uvcvideo/uvcvideo.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
index 53b2f23ab029..1f282f26bec3 100644
--- a/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
+++ b/src/libcamera/pipeline/uvcvideo/uvcvideo.cpp
@@ -26,6 +26,7 @@
 #include "libcamera/internal/device_enumerator.h"
 #include "libcamera/internal/media_device.h"
 #include "libcamera/internal/pipeline_handler.h"
+#include "libcamera/internal/request.h"
 #include "libcamera/internal/sysfs.h"
 #include "libcamera/internal/v4l2_videodevice.h"
 
@@ -373,8 +374,10 @@ int PipelineHandlerUVC::queueRequestDevice(Camera *camera, Request *request)
 	}
 
 	int ret = processControls(data, request);
-	if (ret < 0)
-		return ret;
+	if (ret < 0) {
+		LOG(UVC, Error) << "Failed to process controls";
+		request->_d()->setErrorFlags(Request::ControlError);
+	}
 
 	ret = data->video_->queueBuffer(buffer);
 	if (ret < 0)
-- 
2.34.1