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authorYang Yingliang <yangyingliang@huawei.com>2021-06-10 17:17:12 +0800
committerDavid S. Miller <davem@davemloft.net>2021-06-10 13:59:37 -0700
commit8a55a73433e763c8aec4a3e8df5c28c821fc44b9 (patch)
tree7818282f94d7b14578f2bae45e3c5beeb6dc6a87 /drivers
parent1f7096f0fdb2ac5ae6f1e290dfdd2fb7bbb074d3 (diff)
net: mido: mdio-mux-bcm-iproc: Use devm_platform_get_and_ioremap_resource()
Use devm_platform_get_and_ioremap_resource() to simplify code and avoid a null-ptr-deref by checking 'res' in it. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/mdio/mdio-mux-bcm-iproc.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/mdio/mdio-mux-bcm-iproc.c b/drivers/net/mdio/mdio-mux-bcm-iproc.c
index 239e88c7a272..014c0baedbd2 100644
--- a/drivers/net/mdio/mdio-mux-bcm-iproc.c
+++ b/drivers/net/mdio/mdio-mux-bcm-iproc.c
@@ -187,7 +187,9 @@ static int mdio_mux_iproc_probe(struct platform_device *pdev)
return -ENOMEM;
md->dev = &pdev->dev;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ md->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+ if (IS_ERR(md->base))
+ return PTR_ERR(md->base);
if (res->start & 0xfff) {
/* For backward compatibility in case the
* base address is specified with an offset.
@@ -196,9 +198,6 @@ static int mdio_mux_iproc_probe(struct platform_device *pdev)
res->start &= ~0xfff;
res->end = res->start + MDIO_REG_ADDR_SPACE_SIZE - 1;
}
- md->base = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(md->base))
- return PTR_ERR(md->base);
md->mii_bus = devm_mdiobus_alloc(&pdev->dev);
if (!md->mii_bus) {