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Subject[PATCH 4.19 098/321] nvme: fix kernel paging oops
Date
From: Sagi Grimberg <sagi@grimberg.me>

[ 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>
---
drivers/nvme/host/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 250ccf3108e98..c4ff4f079448e 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -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);
--
2.20.1


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