From: Ahzo Ahzo@tutanota.com
commit 8c8c06207bcfc5a7e5918fc0a0f7f7b9a2e196d6 upstream.
Set the drm_device to NULL, so that the newly created buffer object doesn't appear to use the embedded gem object.
This is necessary, because otherwise no corresponding dma_resv_fini for the dma_resv_init is called, resulting in a memory leak.
The dma_resv_fini in ttm_bo_release_list is only called if the embedded gem object is not used, which is determined by checking if the drm_device is NULL.
Bug: https://gitlab.freedesktop.org/drm/amd/issues/958 Fixes: 1e053b10ba60 ("drm/ttm: use gem reservation object") Reviewed-by: Christian König christian.koenig@amd.com Signed-off-by: Ahzo Ahzo@tutanota.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Christian König christian.koenig@amd.com Link: https://patchwork.freedesktop.org/patch/355089/ Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/ttm/ttm_bo_util.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -516,6 +516,7 @@ static int ttm_buffer_object_transfer(st fbo->base.base.resv = &fbo->base.base._resv;
dma_resv_init(&fbo->base.base._resv); + fbo->base.base.dev = NULL; ret = dma_resv_trylock(&fbo->base.base._resv); WARN_ON(!ret);