[libcamera-devel] [PATCH] libcamera: pipeline: uvcvideo: Fix crash when default entity is not found
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Thu Jan 2 01:03:06 CET 2020
Commit e441f2c7f46d ("libcamera: pipeline: uvcvideo: Add controls
support") broke handling of UVC devices without a default entity by
turning the error check into an always false check. Fix it.
Fixes: e441f2c7f46d ("libcamera: pipeline: uvcvideo: Add controls support")
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
src/libcamera/pipeline/uvcvideo.cpp | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/src/libcamera/pipeline/uvcvideo.cpp b/src/libcamera/pipeline/uvcvideo.cpp
index 3043366bee38..8d7f7ea79410 100644
--- a/src/libcamera/pipeline/uvcvideo.cpp
+++ b/src/libcamera/pipeline/uvcvideo.cpp
@@ -296,19 +296,19 @@ bool PipelineHandlerUVC::match(DeviceEnumerator *enumerator)
std::unique_ptr<UVCCameraData> data = utils::make_unique<UVCCameraData>(this);
/* Locate and initialise the camera data with the default video node. */
- for (MediaEntity *entity : media->entities()) {
- if (entity->flags() & MEDIA_ENT_FL_DEFAULT) {
- if (data->init(entity))
- return false;
- break;
- }
- }
-
- if (!data) {
+ const std::vector<MediaEntity *> &entities = media->entities();
+ auto entity = std::find_if(entities.begin(), entities.end(),
+ [](MediaEntity *entity) {
+ return entity->flags() & MEDIA_ENT_FL_DEFAULT;
+ });
+ if (entity == entities.end()) {
LOG(UVC, Error) << "Could not find a default video device";
return false;
}
+ if (data->init(*entity))
+ return false;
+
/* Create and register the camera. */
std::set<Stream *> streams{ &data->stream_ };
std::shared_ptr<Camera> camera = Camera::create(this, media->model(), streams);
--
Regards,
Laurent Pinchart
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