[PATCH] drm/virtio: fix possible leak/unlock virtio_gpu_object_array

xndcn xndchn at gmail.com
Fri Mar 5 15:18:19 UTC 2021


virtio_gpu_object array is not freed or unlocked in some
failed cases.

Signed-off-by: xndcn <xndchn at gmail.com>
---
 drivers/gpu/drm/virtio/virtgpu_ioctl.c  | 2 +-
 drivers/gpu/drm/virtio/virtgpu_object.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 23eb6d772e..669f2ee395 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -174,7 +174,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
 		if (!sync_file) {
 			dma_fence_put(&out_fence->f);
 			ret = -ENOMEM;
-			goto out_memdup;
+			goto out_unresv;
 		}
 
 		exbuf->fence_fd = out_fence_fd;
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index d69a5b6da5..4ff1ec28e6 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -248,6 +248,7 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
 
 	ret = virtio_gpu_object_shmem_init(vgdev, bo, &ents, &nents);
 	if (ret != 0) {
+		virtio_gpu_array_put_free(objs);
 		virtio_gpu_free_object(&shmem_obj->base);
 		return ret;
 	}
-- 
2.25.1



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