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RDMA/hns: Fix refcount leak in hns_roce_mmap 

[ Upstream commit cf6a05c849 ]

rdma_user_mmap_entry_get_pgoff() takes the reference.
Add missing rdma_user_mmap_entry_put() to release the reference.

Fixes: 0045e0d3f4 ("RDMA/hns: Support direct wqe of userspace")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Acked-by Haoyue Xu <xuhaoyue1@hisilicon.com>
Link: https://lore.kernel.org/r/20221223072900.802728-1-linmq006@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
pull/1175/head
Miaoqian Lin 2022-12-23 11:29:00 +04:00 committed by Greg Kroah-Hartman
parent 59d54a6515
commit fa87cf2e75
1 changed files with 3 additions and 2 deletions
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5
drivers/infiniband/hw/hns/hns_roce_main.c
View File

@ -443,14 +443,15 @@ static int hns_roce_mmap(struct ib_ucontext *uctx, struct vm_area_struct *vma)
prot = pgprot_device(vma->vm_page_prot);
break;
default:
return -EINVAL;
ret = -EINVAL;
goto out;
}
ret = rdma_user_mmap_io(uctx, vma, pfn, rdma_entry->npages * PAGE_SIZE,
prot, rdma_entry);
out:
rdma_user_mmap_entry_put(rdma_entry);
return ret;
}