[PATCH v5 3/6] ttm_pool_fini() does not destroy list lru

["Óscar Megía López" <megia.oscar@gmail.com>]

Bug: ttm_pool_fini() does not destroy list lru with list_lru_destroy().

Fix: Add list_lru_destroy() after ttm_pool_type_fini().

Assisted-by: OpenCode:1.17.18-Big Pickle/DeepSeek V4 Flash
Assisted-by: claude.ai:Sonnet 5
Cc: <stable@vger.kernel.org> # 7.1.0
Fixes: 444e2a19d7fd ("ttm/pool: port to list_lru. (v2)")
Signed-off-by: Óscar Megía López <megia.oscar@gmail.com>
---
 drivers/gpu/drm/ttm/ttm_pool.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/ttm/ttm_pool.c b/drivers/gpu/drm/ttm/ttm_pool.c
index 8637f7942347..87c843f52736 100644
--- a/drivers/gpu/drm/ttm/ttm_pool.c
+++ b/drivers/gpu/drm/ttm/ttm_pool.c
@@ -1232,6 +1232,17 @@ void ttm_pool_fini(struct ttm_pool *pool)
 	 * that no shrinker is concurrently freeing pages from the pool.
 	 */
 	ttm_pool_synchronize_shrinkers();
+
+	for (i = 0; i < TTM_NUM_CACHING_TYPES; ++i) {
+		for (j = 0; j < NR_PAGE_ORDERS; ++j) {
+			struct ttm_pool_type *pt;
+
+			pt = ttm_pool_select_type(pool, i, j);
+			if (pt != &pool->caching[i].orders[j])
+				continue;
+			list_lru_destroy(&pt->pages);
+		}
+	}
 }
 EXPORT_SYMBOL(ttm_pool_fini);
 
-- 
2.55.0