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authorYufen Yu <yuyufen@huawei.com>2019-05-16 19:30:07 -0700
committerKeith Busch <keith.busch@intel.com>2019-05-17 11:08:09 -0600
commit510a405d945bc985abc513fafe45890cac34fafa (patch)
tree9bfbd1bf8a1ef26b8a13a5c802b0eef668aa3241 /drivers/nvme
parent5fb4aac756acacf260b9ebd88747251effa3a2f2 (diff)
downloadlinux-510a405d945bc985abc513fafe45890cac34fafa.tar.bz2
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 <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>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/core.c1
1 files changed, 1 insertions, 0 deletions
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);