Hello,
On 18/03/2021 13:56:47+0000, 'w00385741 wrote:
> From: Wei Yongjun <weiyongj...@huawei.com>
>
> 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 <hul...@huawei.com>
> Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
> ---
> 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 06bcf0c166cf..dd854d825000 100644
> --- a/drivers/phy/microchip/sparx5_serdes.c
> +++ b/drivers/phy/microchip/sparx5_serdes.c
> @@ -2438,10 +2438,10 @@ static int sparx5_serdes_probe(struct platform_device
> *pdev)
>
> iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> iomem = devm_ioremap(priv->dev, iores->start, iores->end - iores->start
> + 1);
> - 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;
> }
A better fix would use devm_platform_ioremap_resource and get rid of the
error messages
> for (idx = 0; idx < ARRAY_SIZE(sparx5_serdes_iomap); idx++) {
> struct sparx5_serdes_io_resource *iomap =
> &sparx5_serdes_iomap[idx];
>
--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
