[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20160920160712.1190216-11-salil.mehta@huawei.com>
Date: Tue, 20 Sep 2016 17:07:03 +0100
From: Salil Mehta <salil.mehta@...wei.com>
To: <dledford@...hat.com>
CC: <salil.mehta@...wei.com>, <xavier.huwei@...wei.com>,
<oulijun@...wei.com>, <yisen.zhuang@...wei.com>,
<mehta.salil.lnk@...il.com>, <xuwei5@...ilicon.com>,
<linux-rdma@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linuxarm@...wei.com>, Dongdong Huang <hdd.huang@...wei.com>
Subject: [PATCH V2 for-next 10/19] IB/hns: Fix bug of memory leakage for registering user mr
From: Lijun Ou <oulijun@...wei.com>
While the page size attribute of umem is illegal, we should release
umem that get by ib_umem_get interface.
Also, we should return a non-zero value while pbl number is wrong.
Signed-off-by: Lijun Ou <oulijun@...wei.com>
Signed-off-by: Dongdong Huang(Donald) <hdd.huang@...wei.com>
Reviewed-by: Wei Hu (Xavier) <xavier.huwei@...wei.com>
Signed-off-by: Salil Mehta <salil.mehta@...wei.com>
---
drivers/infiniband/hw/hns/hns_roce_mr.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c
index 59f5e2b..fb87883 100644
--- a/drivers/infiniband/hw/hns/hns_roce_mr.c
+++ b/drivers/infiniband/hw/hns/hns_roce_mr.c
@@ -564,11 +564,14 @@ struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
if (mr->umem->page_size != HNS_ROCE_HEM_PAGE_SIZE) {
dev_err(dev, "Just support 4K page size but is 0x%x now!\n",
mr->umem->page_size);
+ ret = -EINVAL;
+ goto err_umem;
}
if (n > HNS_ROCE_MAX_MTPT_PBL_NUM) {
dev_err(dev, " MR len %lld err. MR is limited to 4G at most!\n",
length);
+ ret = -EINVAL;
goto err_umem;
}
--
1.9.1
Powered by blists - more mailing lists