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| author | Lijun Ou <oulijun@huawei.com> | 2016-09-20 17:07:10 +0100 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-10-03 11:43:15 -0400 |
| commit | 3e413872b1832e1cf6de037ec01b2c4c992f0136 (patch) | |
| tree | 9df4ad7ef5c676ceda83b5074fe3c6b3c740b8f5 /drivers/infiniband | |
| parent | 1fad5fab782c18a90865f61bff1bde3a0dba1678 (diff) | |
| download | linux-stable-3e413872b1832e1cf6de037ec01b2c4c992f0136.tar.gz linux-stable-3e413872b1832e1cf6de037ec01b2c4c992f0136.tar.bz2 linux-stable-3e413872b1832e1cf6de037ec01b2c4c992f0136.zip | |
IB/hns: Fix the bug when platform_get_resource() exec fail
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>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_pd.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_pd.c b/drivers/infiniband/hw/hns/hns_roce_pd.c index 0cd6132b75f0..05db7d59812a 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; |