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nvme: fix kernel paging oops

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[ Upstream commit 092ff0520070fad8407b196f3bb6156ce77a6f98 ]

free the controller discard_page correctly.

Fixes: cb5b7262b011 ("nvme: provide fallback for discard alloc failure")
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sagi Grimberg
2018-12-13 12:34:07 -08:00
committed by Greg Kroah-Hartman
parent 2f99d478dd
commit 3331e61b23
1 changed files with 1 additions and 1 deletions
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drivers/nvme/host/core.c
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@@ -3569,7 +3569,7 @@ static void nvme_free_ctrl(struct device *dev)
ida_simple_remove(&nvme_instance_ida, ctrl->instance);
kfree(ctrl->effects);
nvme_mpath_uninit(ctrl);
kfree(ctrl->discard_page);
__free_page(ctrl->discard_page);
if (subsys) {
mutex_lock(&subsys->lock);