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phy: Sparx5 Eth SerDes: check return value after calling platform_get_resource()

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It will cause null-ptr-deref if platform_get_resource() returns NULL,
we need check the return value.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210603051014.2674744-1-yangyingliang@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Yang Yingliang 2021-06-03 13:10:14 +08:00 committed by Vinod Koul
parent d6e9e8e5dd
commit d1ce245fe4
1 changed files with 4 additions and 0 deletions
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4
drivers/phy/microchip/sparx5_serdes.c
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@ -2470,6 +2470,10 @@ static int sparx5_serdes_probe(struct platform_device *pdev)
priv->coreclock = clock;
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iores) {
dev_err(priv->dev, "Invalid resource\n");
return -EINVAL;
}
iomem = devm_ioremap(priv->dev, iores->start, resource_size(iores));
if (IS_ERR(iomem)) {
dev_err(priv->dev, "Unable to get serdes registers: %s\n",