From: Steve Wise <swise@opengridcomputing.com>
Date: Thu, 22 Mar 2007 15:38:20 +0000 (-0500)
Subject: RDMA/cxgb3: Handle build_phys_page_list() failure in iwch_reregister_phys_mem()
X-Git-Tag: v2.6.21-rc5~46^2~3
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d60134718820892853e8be7141ef7f6cdb455ea6;p=linux-2.6

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 f2774ae906..24e0df04f7 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -545,11 +545,14 @@ static int iwch_reregister_phys_mem(struct ib_mr *mr,
 		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);