This is a note to let you know that I've just added the patch titled RDMA/hns: fix memory leak in hns_roce_alloc_mr() to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: rdma-hns-fix-memory-leak-in-hns_roce_alloc_mr.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 4d3a04a9edbd9f54f1fc3748911663fb6aaaf182 Author: Zhengchao Shao <shaozhengchao@xxxxxxxxxx> Date: Sat Nov 19 15:08:34 2022 +0800 RDMA/hns: fix memory leak in hns_roce_alloc_mr() [ Upstream commit a115aa00b18f7b8982b8f458149632caf64a862a ] When hns_roce_mr_enable() failed in hns_roce_alloc_mr(), mr_key is not released. Compiled test only. Fixes: 9b2cf76c9f05 ("RDMA/hns: Optimize PBL buffer allocation process") Signed-off-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx> Link: https://lore.kernel.org/r/20221119070834.48502-1-shaozhengchao@xxxxxxxxxx Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c index 20360df25771..a593c142cd6b 100644 --- a/drivers/infiniband/hw/hns/hns_roce_mr.c +++ b/drivers/infiniband/hw/hns/hns_roce_mr.c @@ -415,10 +415,10 @@ struct ib_mr *hns_roce_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, return &mr->ibmr; -err_key: - free_mr_key(hr_dev, mr); err_pbl: free_mr_pbl(hr_dev, mr); +err_key: + free_mr_key(hr_dev, mr); err_free: kfree(mr); return ERR_PTR(ret);