Commit c13f28fd authored by Yufen Yu's avatar Yufen Yu Committed by Greg Kroah-Hartman

nvme: fix memory leak for power latency tolerance

[ Upstream commit 510a405d ]

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: c5552fde("nvme: Enable autonomous power state transitions")
Suggested-by: default avatarKeith Busch <keith.busch@intel.com>
Tested-by: default avatarDavid Milburn <dmilburn@redhat.com>
Signed-off-by: default avatarYufen Yu <yuyufen@huawei.com>
[changelog]
Signed-off-by: default avatarKeith Busch <keith.busch@intel.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent e55f7b64
...@@ -3699,6 +3699,7 @@ EXPORT_SYMBOL_GPL(nvme_start_ctrl); ...@@ -3699,6 +3699,7 @@ EXPORT_SYMBOL_GPL(nvme_start_ctrl);
void nvme_uninit_ctrl(struct nvme_ctrl *ctrl) void nvme_uninit_ctrl(struct nvme_ctrl *ctrl)
{ {
dev_pm_qos_hide_latency_tolerance(ctrl->device);
cdev_device_del(&ctrl->cdev, ctrl->device); cdev_device_del(&ctrl->cdev, ctrl->device);
} }
EXPORT_SYMBOL_GPL(nvme_uninit_ctrl); EXPORT_SYMBOL_GPL(nvme_uninit_ctrl);
......
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