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phy: Sparx5 Eth SerDes: Fix return value check in sparx5_serdes_probe()

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[ Upstream commit b4dc97ab0a ]

In case of error, the function devm_ioremap() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value
check should be replaced with NULL test.

Fixes: 2ff8a1eeb5 ("phy: Add Sparx5 ethernet serdes PHY driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210909072149.2934047-1-yangyingliang@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yang Yingliang 2021-09-09 15:21:49 +08:00 committed by Greg Kroah-Hartman
parent 34f5e44c8f
commit d0379ee4a8
1 changed files with 2 additions and 2 deletions
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4
drivers/phy/microchip/sparx5_serdes.c
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@ -2475,10 +2475,10 @@ static int sparx5_serdes_probe(struct platform_device *pdev)
return -EINVAL;
}
iomem = devm_ioremap(priv->dev, iores->start, resource_size(iores));
if (IS_ERR(iomem)) {
if (!iomem) {
dev_err(priv->dev, "Unable to get serdes registers: %s\n",
iores->name);
return PTR_ERR(iomem);
return -ENOMEM;
}
for (idx = 0; idx < ARRAY_SIZE(sparx5_serdes_iomap); idx++) {
struct sparx5_serdes_io_resource *iomap = &sparx5_serdes_iomap[idx];