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gstreamer: allocator: gst_libcamera_allocator_new(): Fix memory leak

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If `FrameBufferAllocator::allocate()` causes the construction to be
aborted, the allocated `GstLibcameraAllocator` will not be
deallocated properly. Use `g_autoptr()` to address this.

`g_steal_pointer()` could only be used in glib 2.68 or later because
earlier it evaluates to a pointer-to-void in C++, which would necessitate
a `static_cast`.

Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
This commit is contained in:
Barnabás Pőcze 2025-01-06 10:06:22 +00:00
parent fd6e41b9fb
commit ac611e80d2
1 changed files with 6 additions and 6 deletions
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12
src/gstreamer/gstlibcameraallocator.cpp
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@ -8,6 +8,8 @@
#include "gstlibcameraallocator.h"
#include <utility>
#include <libcamera/camera.h>
#include <libcamera/framebuffer_allocator.h>
#include <libcamera/stream.h>
@ -199,15 +201,13 @@ GstLibcameraAllocator *
gst_libcamera_allocator_new(std::shared_ptr<Camera> camera,
CameraConfiguration *config_)
{
auto *self = GST_LIBCAMERA_ALLOCATOR(g_object_new(GST_TYPE_LIBCAMERA_ALLOCATOR,
nullptr));
g_autoptr(GstLibcameraAllocator) self = GST_LIBCAMERA_ALLOCATOR(g_object_new(GST_TYPE_LIBCAMERA_ALLOCATOR,
nullptr));
gint ret;
self->cm_ptr = new std::shared_ptr<CameraManager>(gst_libcamera_get_camera_manager(ret));
if (ret) {
g_object_unref(self);
if (ret)
return nullptr;
}
self->fb_allocator = new FrameBufferAllocator(camera);
for (StreamConfiguration &streamCfg : *config_) {
@ -228,7 +228,7 @@ gst_libcamera_allocator_new(std::shared_ptr<Camera> camera,
g_hash_table_insert(self->pools, stream, pool);
}
return self;
return std::exchange(self, nullptr);
}
bool