From: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
commit a590f03d8de7c4cb7ce4916dc7f2fd10711faabe upstream.
If moving the bo to system for swapout failed, we were leaking
a resource. Fix.
Fixes: bfa3357ef9ab ("drm/ttm: allocate resource object instead of embedding it v2")
Cc: Christian König <christian.koenig@xxxxxxx>
Cc: "Christian König" <ckoenig.leichtzumerken@xxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: <stable@xxxxxxxxxxxxxxx> # v5.14+
Signed-off-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
Reviewed-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>
Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230626091450.14757-5-thomas.hellstrom@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/ttm/ttm_bo.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1187,6 +1187,7 @@ int ttm_bo_swapout(struct ttm_buffer_obj
ret = ttm_bo_handle_move_mem(bo, evict_mem, true, &ctx, &hop);
if (unlikely(ret != 0)) {
WARN(ret == -EMULTIHOP, "Unexpected multihop in swaput - likely driver bug.\n");
+ ttm_resource_free(bo, &evict_mem);
goto out;
}
}
