From: Salil Mehta <salil.mehta@huawei.com>
To: <dledford@redhat.com>
Cc: <salil.mehta@huawei.com>, <xavier.huwei@huawei.com>,
<oulijun@huawei.com>, <yisen.zhuang@huawei.com>,
<mehta.salil.lnk@gmail.com>, <xuwei5@hisilicon.com>,
<linux-rdma@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linuxarm@huawei.com>
Subject: [PATCH V2 for-next 17/19] IB/hns: Fix the bug when platform_get_resource() exec fail
Date: Tue, 20 Sep 2016 17:07:10 +0100 [thread overview]
Message-ID: <20160920160712.1190216-18-salil.mehta@huawei.com> (raw)
In-Reply-To: <20160920160712.1190216-1-salil.mehta@huawei.com>
From: Lijun Ou <oulijun@huawei.com>
This patch mainly fixes the bug with platform_get_resource().
It should return NULL when platform_get_resource() exec fail.
Signed-off-by: Lijun Ou <oulijun@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_pd.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/infiniband/hw/hns/hns_roce_pd.c b/drivers/infiniband/hw/hns/hns_roce_pd.c
index 0cd6132..05db7d5 100644
--- a/drivers/infiniband/hw/hns/hns_roce_pd.c
+++ b/drivers/infiniband/hw/hns/hns_roce_pd.c
@@ -110,6 +110,10 @@ int hns_roce_uar_alloc(struct hns_roce_dev *hr_dev, struct hns_roce_uar *uar)
(hr_dev->caps.phy_num_uars - 1) + 1;
res = platform_get_resource(hr_dev->pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&hr_dev->pdev->dev, "memory resource not found!\n");
+ return -EINVAL;
+ }
uar->pfn = ((res->start) >> PAGE_SHIFT) + uar->index;
return 0;
--
1.9.1
next prev parent reply other threads:[~2016-09-20 16:10 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-20 16:06 [PATCH V2 for-next 00/19] IB/hns: Fixes for various misc. bugs Salil Mehta
2016-09-20 16:06 ` [PATCH V2 for-next 01/19] IB/hns: Remove unused parameters in some functions Salil Mehta
2016-09-20 16:06 ` [PATCH V2 for-next 02/19] IB/hns: Remove parameters of resize cq Salil Mehta
2016-09-20 16:06 ` [PATCH V2 for-next 03/19] IB/hns: Fix bug of using uninit refcount and free Salil Mehta
2016-09-20 16:06 ` [PATCH V2 for-next 04/19] IB/hns: Simplify function of pd alloc and qp alloc Salil Mehta
2016-09-20 16:06 ` [PATCH V2 for-next 05/19] IB/hns: Remove unused parameter named qp_type Salil Mehta
2016-09-20 16:06 ` [PATCH V2 for-next 06/19] IB/hns: Fix bug of clear hem Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 07/19] IB/hns: Delete the sqp_start from the structure hns_roce_caps Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 08/19] IB/hns: Optimize code of aeq and ceq interrupt handle and fix the bug of qpn Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 09/19] IB/hns: Modify the init of iboe lock Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 10/19] IB/hns: Fix bug of memory leakage for registering user mr Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 11/19] IB/hns: Return bad wr while post send failed Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 12/19] IB/hns: The Ack timeout need a lower limit value Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 13/19] IB/hns: Some items of qpc need to take user param Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 14/19] IB/hns: Validate mtu when modified qp Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 15/19] IB/hns: Cq has not been freed Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 16/19] IB/hns: Update the rq head when modify qp state Salil Mehta
2016-09-20 16:07 ` Salil Mehta [this message]
2016-09-20 16:07 ` [PATCH V2 for-next 18/19] IB/hns: Delete the redundant lines in hns_roce_v1_m_qp() Salil Mehta
2016-09-20 16:07 ` [PATCH V2 for-next 19/19] IB/hns: Fix for removal of redundant code Salil Mehta
2016-09-22 13:37 ` [PATCH V2 for-next 00/19] IB/hns: Fixes for various misc. bugs Leon Romanovsky
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