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Groups > linux.kernel > #1487490
| From | Salil Mehta <salil.mehta@huawei.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH V2 for-next 17/19] IB/hns: Fix the bug when platform_get_resource() exec fail |
| Date | 2016-09-20 18:20 +0200 |
| Message-ID | <sjvW1-5lT-5@gated-at.bofh.it> (permalink) |
| References | <sjvMm-5fH-15@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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
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[PATCH V2 for-next 00/19] IB/hns: Fixes for various misc. bugs Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:10 +0200 [PATCH V2 for-next 05/19] IB/hns: Remove unused parameter named qp_type Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:10 +0200 [PATCH V2 for-next 03/19] IB/hns: Fix bug of using uninit refcount and free Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:10 +0200 [PATCH V2 for-next 06/19] IB/hns: Fix bug of clear hem Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:10 +0200 [PATCH V2 for-next 11/19] IB/hns: Return bad wr while post send failed Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 13/19] IB/hns: Some items of qpc need to take user param Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 17/19] IB/hns: Fix the bug when platform_get_resource() exec fail Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 18/19] IB/hns: Delete the redundant lines in hns_roce_v1_m_qp() Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 12/19] IB/hns: The Ack timeout need a lower limit value Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 16/19] IB/hns: Update the rq head when modify qp state Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 10/19] IB/hns: Fix bug of memory leakage for registering user mr Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 02/19] IB/hns: Remove parameters of resize cq Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 01/19] IB/hns: Remove unused parameters in some functions Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 19/19] IB/hns: Fix for removal of redundant code Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 15/19] IB/hns: Cq has not been freed Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 [PATCH V2 for-next 14/19] IB/hns: Validate mtu when modified qp Salil Mehta <salil.mehta@huawei.com> - 2016-09-20 18:20 +0200 Re: [PATCH V2 for-next 00/19] IB/hns: Fixes for various misc. bugs Leon Romanovsky <leon@kernel.org> - 2016-09-22 15:40 +0200
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