From 510a405d945bc985abc513fafe45890cac34fafa Mon Sep 17 00:00:00 2001 From: Yufen Yu Date: Thu, 16 May 2019 19:30:07 -0700 Subject: [PATCH] nvme: fix memory leak for power latency tolerance Unconditionally hide device pm latency tolerance when uninitializing the controller to ensure all qos resources are released so that we're not leaking this memory. This is safe to call if none were allocated in the first place, or were previously freed. Fixes: c5552fde102fc("nvme: Enable autonomous power state transitions") Suggested-by: Keith Busch Tested-by: David Milburn Signed-off-by: Yufen Yu [changelog] Signed-off-by: Keith Busch --- drivers/nvme/host/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index d4226c18eb71..e1449c196f20 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3700,6 +3700,7 @@ EXPORT_SYMBOL_GPL(nvme_start_ctrl); void nvme_uninit_ctrl(struct nvme_ctrl *ctrl) { + dev_pm_qos_hide_latency_tolerance(ctrl->device); cdev_device_del(&ctrl->cdev, ctrl->device); } EXPORT_SYMBOL_GPL(nvme_uninit_ctrl); -- 2.39.5