linux-kernel - [PATCH 2.6.21] iw_cxgb3: Handle build_phys_page_list() failure in iwch_reregister_phys

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Date:	Thu, 22 Mar 2007 10:38:20 -0500
From:	Steve Wise <swise@...ngridcomputing.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Netdev@...r.kernel.org, General@...ts.openfabrics.org,
	Adrian Bunk <bunk@...sta.de>
Subject: [PATCH 2.6.21] iw_cxgb3: Handle build_phys_page_list() failure in
	iwch_reregister_phys_mem().


Handle build_phys_page_list() failure in iwch_reregister_phys_mem().

Signed-off-by: Steve Wise <swise@...ngridcomputing.com>
---

 drivers/infiniband/hw/cxgb3/iwch_provider.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

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 @@ static int iwch_reregister_phys_mem(stru
 		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);

-
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