RDMA/cxgb3: Handle build_phys_page_list() failure in iwch_reregister_phys_mem()
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index f2774ae..24e0df0 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -545,11 +545,14 @@
php = to_iwch_pd(pd);
if (mr_rereg_mask & IB_MR_REREG_ACCESS)
mh.attr.perms = iwch_ib_to_tpt_access(acc);
- if (mr_rereg_mask & IB_MR_REREG_TRANS)
+ if (mr_rereg_mask & IB_MR_REREG_TRANS) {
ret = build_phys_page_list(buffer_list, num_phys_buf,
iova_start,
&total_size, &npages,
&shift, &page_list);
+ if (ret)
+ return ret;
+ }
ret = iwch_reregister_mem(rhp, php, &mh, shift, page_list, npages);
kfree(page_list);