From: Sean Paul <seanpaul@xxxxxxxxxxxx> We are currently leaking a drm_crtc_commit struct for every atomic commit containing plane state. The dpu plane destroy function cleans up the fb reference manually, but fails to release the commit ref. As a result, we just keep allocating drm_crtc_commits without ever freeing them. Fortunately there's a helper function which will clean up all of our mess at once, so use that. Thanks to Doug Anderson for reporting the memory leak (and leaving breadcrumbs from kmemleak!). Reported-by: Doug Anderson <dianders@xxxxxxxxxxxx> Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx> --- drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c index fc59a69aa832..f549daf30fe6 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c @@ -1203,9 +1203,7 @@ static void dpu_plane_destroy_state(struct drm_plane *plane, pstate = to_dpu_plane_state(state); - /* remove ref count for frame buffers */ - if (state->fb) - drm_framebuffer_put(state->fb); + __drm_atomic_helper_plane_destroy_state(state); kfree(pstate); } -- Sean Paul, Software Engineer, Google / Chromium OS
