RDMA/hns: Remove unnecessary platform_get_resource() error check

BugLink: https://bugs.launchpad.net/bugs/1770974
devm_ioremap_resource() already checks if the resource is NULL, so
remove the unnecessary platform_get_resource() error check.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
(cherry picked from commit 0b5fe5c43ab67130d259d800fcc109c7340acb63)
Signed-off-by: dann frazier <dann.frazier@canonical.com>
Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
index 42f59b530e54e36a25ea064d23a9ecbe020030e9..da13bd7c3ca99617ebf9d9f6d831660bde531bc5 100644 (file)
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
@@ -4812,10 +4812,6 @@ static int hns_roce_get_cfg(struct hns_roce_dev *hr_dev)
 
        /* get the mapped register base address */
        res = platform_get_resource(hr_dev->pdev, IORESOURCE_MEM, 0);
-       if (!res) {
-               dev_err(dev, "memory resource not found!\n");
-               return -EINVAL;
-       }
        hr_dev->reg_base = devm_ioremap_resource(dev, res);
        if (IS_ERR(hr_dev->reg_base))
                return PTR_ERR(hr_dev->reg_base);