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

From: Yang Yingliang
Date: Thu Sep 09 2021 - 03:16:41 EST


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: 2ff8a1eeb5aa ("phy: Add Sparx5 ethernet serdes PHY driver")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
drivers/phy/microchip/sparx5_serdes.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/microchip/sparx5_serdes.c b/drivers/phy/microchip/sparx5_serdes.c
index 4076580fc2cd..ab1b0986aa67 100644
--- a/drivers/phy/microchip/sparx5_serdes.c
+++ b/drivers/phy/microchip/sparx5_serdes.c
@@ -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];
--
2.25.1