Commit 3e413872 authored Sep 20, 2016 by Lijun Ou Committed by Doug Ledford Oct 03, 2016

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>

parent 1fad5fab

drivers/infiniband/hw/hns/hns_roce_pd.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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;