RDMA/nes: Add missing calls to ib_umem_release()

Add calls to ib_umem_release(), as in the other error-handling code in
nes_reg_user_mr().

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index 9f2f7d4b119754853a6003f8fc8b7dd24473ccad..394d0e7e4a5c28efcb987e360c9feb89fe650b11 100644 (file)
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -2338,8 +2338,10 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 
        skip_pages = ((u32)region->offset) >> 12;
 
-       if (ib_copy_from_udata(&req, udata, sizeof(req)))
+       if (ib_copy_from_udata(&req, udata, sizeof(req))) {
+               ib_umem_release(region);
                return ERR_PTR(-EFAULT);
+       }
        nes_debug(NES_DBG_MR, "Memory Registration type = %08X.\n", req.reg_type);
 
        switch (req.reg_type) {
@@ -2631,6 +2633,7 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
                        return &nesmr->ibmr;
        }
 
+       ib_umem_release(region);
        return ERR_PTR(-ENOSYS);
 }