From: Miaoqian Lin linmq006@gmail.com
[ Upstream commit cf6a05c8494a8ae7fec8e5f1229b45ca5b4bcd30 ]
rdma_user_mmap_entry_get_pgoff() takes the reference. Add missing rdma_user_mmap_entry_put() to release the reference.
Fixes: 0045e0d3f42e ("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 --- drivers/infiniband/hw/hns/hns_roce_main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index 8ba68ac12388d..946ba1109e878 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -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; }