libcamera: camera: Return -EINVAL if any stream is null while configure()

Fail and return the Camera::configure() operation if any
of the stream turns out to be a nullptr even after the
PipelineHandler handler seems to have configured the config
successfully. This prevents a null-dereference below in the
loop.

Reported-by: Coverity CID=279069
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/libcamera/camera.cpp b/src/libcamera/camera.cpp
index dfc3d193..03f58b4a 100644
--- a/src/libcamera/camera.cpp
+++ b/src/libcamera/camera.cpp
@@ -777,9 +777,12 @@ int Camera::configure(CameraConfiguration *config)
 	p_->activeStreams_.clear();
 	for (const StreamConfiguration &cfg : *config) {
 		Stream *stream = cfg.stream();
-		if (!stream)
+		if (!stream) {
 			LOG(Camera, Fatal)
 				<< "Pipeline handler failed to update stream configuration";
+			p_->activeStreams_.clear();
+			return -EINVAL;
+		}
 
 		stream->configuration_ = cfg;
 		p_->activeStreams_.insert(stream);