Commit de9e397e authored by Radha Mohan Chintakuntla's avatar Radha Mohan Chintakuntla Committed by David S. Miller
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net: mdio-octeon: Fix octeon_mdiobus_probe function for return values



This patch fixes a possible crash in the octeon_mdiobus_probe function
if the return values are not handled properly.

Signed-off-by: default avatarRadha Mohan Chintakuntla <rchintakuntla@cavium.com>
Signed-off-by: default avatarTomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a6d67864
......@@ -277,24 +277,28 @@ static int octeon_mdiobus_probe(struct platform_device *pdev)
return -ENOMEM;
res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res_mem == NULL) {
dev_err(&pdev->dev, "found no memory resource\n");
err = -ENXIO;
goto fail;
return -ENXIO;
}
bus->mdio_phys = res_mem->start;
bus->regsize = resource_size(res_mem);
if (!devm_request_mem_region(&pdev->dev, bus->mdio_phys, bus->regsize,
res_mem->name)) {
dev_err(&pdev->dev, "request_mem_region failed\n");
goto fail;
return -ENXIO;
}
bus->register_base =
(u64)devm_ioremap(&pdev->dev, bus->mdio_phys, bus->regsize);
if (!bus->register_base) {
dev_err(&pdev->dev, "dev_ioremap failed\n");
return -ENOMEM;
}
bus->mii_bus = mdiobus_alloc();
if (!bus->mii_bus)
goto fail;
......
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