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IB/hns: Fix return value check in hns_roce_get_cfg() 

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Wei Yongjun 2016-08-06 01:01:24 +00:00 committed by Doug Ledford
parent 66a9bae67b
commit 204f69ba64
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/hw/hns/hns_roce_main.c
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@ -715,8 +715,8 @@ static int hns_roce_get_cfg(struct hns_roce_dev *hr_dev)
res = platform_get_resource(hr_dev->pdev, IORESOURCE_MEM, 0);
hr_dev->reg_base = devm_ioremap_resource(dev, res);
if (!hr_dev->reg_base)
return -ENOMEM;
if (IS_ERR(hr_dev->reg_base))
return PTR_ERR(hr_dev->reg_base);
for (i = 0; i < HNS_ROCE_MAX_PORTS; i++) {
net_node = of_parse_phandle(np, "eth-handle", i);