[PATCH 4.19 05/78] RDMA/rxe: Fix memleak in rxe_mem_init_user

[Greg Kroah-Hartman]

From: Dinghao Liu <dinghao....@zju.edu.cn>

[ Upstream commit e3ddd6067ee62f6e76ebcf61ff08b2c729ae412b ]

When page_address() fails, umem should be freed just like when
rxe_mem_alloc() fails.

Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20200819075632.22285-1-dinghao....@zju.edu.cn
Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn>
Signed-off-by: Jason Gunthorpe <j...@nvidia.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/infiniband/sw/rxe/rxe_mr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c 
b/drivers/infiniband/sw/rxe/rxe_mr.c
index dff605fdf60fa..2cca89ca08cd4 100644
--- a/drivers/infiniband/sw/rxe/rxe_mr.c
+++ b/drivers/infiniband/sw/rxe/rxe_mr.c
@@ -203,6 +203,7 @@ int rxe_mem_init_user(struct rxe_pd *pd, u64 start,
                        vaddr = page_address(sg_page(sg));
                        if (!vaddr) {
                                pr_warn("null vaddr\n");
+                               ib_umem_release(umem);
                                err = -ENOMEM;
                                goto err1;
                        }
-- 
2.25.1