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[V2,for-next,10/19] IB/hns: Fix bug of memory leakage for registering user mr

Message ID 20160920160712.1190216-11-salil.mehta@huawei.com (mailing list archive)
State Accepted
Headers show

Commit Message

Salil Mehta Sept. 20, 2016, 4:07 p.m. UTC 
From: Lijun Ou <oulijun@huawei.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@huawei.com>
Signed-off-by: Dongdong Huang(Donald) <hdd.huang@huawei.com>
Reviewed-by:  Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
 drivers/infiniband/hw/hns/hns_roce_mr.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox

Patch

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;
 	}