Commit 510a405d authored May 16, 2019 by Yufen Yu Committed by Keith Busch May 17, 2019

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: c5552fde("nvme: Enable autonomous power state transitions")
Suggested-by: Keith Busch <keith.busch@intel.com>
Tested-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
[changelog]
Signed-off-by: Keith Busch <keith.busch@intel.com>

parent 5fb4aac7

drivers/nvme/host/core.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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);

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