On Tue, Feb 25, 2020 at 2:09 PM Christian König <ckoenig.leichtzumerken@xxxxxxxxx> wrote: > > Am 25.02.20 um 19:56 schrieb Alex Deucher: > > From: Ahzo <Ahzo@xxxxxxxxxxxx> > > > > 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") > > Signed-off-by: Ahzo <Ahzo@xxxxxxxxxxxx> > > Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> > > Good catch I was trying to hunt that one down as well. > > Reviewed-by: Christian König <christian.koenig@xxxxxxx> Can you apply it to drm-misc? Thanks, Alex > > > --- > > drivers/gpu/drm/ttm/ttm_bo_util.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c > > index c8e359ded1df..44c1e7adfb7c 100644 > > --- a/drivers/gpu/drm/ttm/ttm_bo_util.c > > +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c > > @@ -514,6 +514,7 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo, > > 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); > > > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
