libcamera: delayed_controls: Inherit from Object class

A second use-after-free bug related to signals staying connected after
the receiver DelayedControls instance gets deleted has been found, this
time in the simple pipeline handler. Fix the issue once and for all by
making the DelayedControls class inherit from Object. This will
disconnect signals automatically upon deletion of the receiver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Tested-by: Isaac Scott <isaac.scott@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2025-02-24 03:19:34 +02:00 committed by Kieran Bingham
parent fb72083975
commit afd9890b7b

View file

@ -10,13 +10,15 @@
#include <stdint.h>
#include <unordered_map>
#include <libcamera/base/object.h>
#include <libcamera/controls.h>
namespace libcamera {
class V4L2Device;
class DelayedControls
class DelayedControls : public Object
{
public:
struct ControlParams {