android: CameraHalManager: Create a static object dynamically

Originally CameraHalManager is created in the libcamera start up
and destroyed in the libcamera termination. However,
CameraHalManager destructor can access  other static objects that
has been destroyed.
Avoid this issue by destroying CameraHalManager when tear_down() is
called in ChromeOS or leaking it in other platforms.

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 6 insertions, 7 deletions

diff --git a/src/android/camera3_hal.cpp b/src/android/camera3_hal.cpp
index 08773d33..e6d435e0 100644
--- a/src/android/camera3_hal.cpp
+++ b/src/android/camera3_hal.cpp
@@ -16,25 +16,23 @@ using namespace libcamera;
 
 LOG_DEFINE_CATEGORY(HAL)
 
-static CameraHalManager cameraManager;
-
 /*------------------------------------------------------------------------------
  * Android Camera HAL callbacks
  */
 
 static int hal_get_number_of_cameras()
 {
-	return cameraManager.numCameras();
+	return CameraHalManager::instance()->numCameras();
 }
 
 static int hal_get_camera_info(int id, struct camera_info *info)
 {
-	return cameraManager.getCameraInfo(id, info);
+	return CameraHalManager::instance()->getCameraInfo(id, info);
 }
 
 static int hal_set_callbacks(const camera_module_callbacks_t *callbacks)
 {
-	cameraManager.setCallbacks(callbacks);
+	CameraHalManager::instance()->setCallbacks(callbacks);
 
 	return 0;
 }
@@ -62,7 +60,7 @@ static int hal_init()
 {
 	LOG(HAL, Info) << "Initialising Android camera HAL";
 
-	cameraManager.init();
+	CameraHalManager::instance()->init();
 
 	return 0;
 }
@@ -77,7 +75,8 @@ static int hal_dev_open(const hw_module_t *module, const char *name,
 	LOG(HAL, Debug) << "Open camera " << name;
 
 	int id = atoi(name);
-	auto [camera, ret] = cameraManager.open(id, module);
+
+	auto [camera, ret] = CameraHalManager::instance()->open(id, module);
 	if (!camera) {
 		LOG(HAL, Error)
 			<< "Failed to open camera module '" << id << "'";