This is a note to let you know that I've just added the patch titled phy: Sparx5 Eth SerDes: Fix return value check in sparx5_serdes_probe() to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: phy-sparx5-eth-serdes-fix-return-value-check-in-spar.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 3ed941cd9c0df560aaf27c6b398629640b380394 Author: Yang Yingliang <yangyingliang@xxxxxxxxxx> Date: Thu Sep 9 15:21:49 2021 +0800 phy: Sparx5 Eth SerDes: Fix return value check in sparx5_serdes_probe() [ Upstream commit b4dc97ab0a629eda8bda20d96ef47dac08a505d9 ] 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> Link: https://lore.kernel.org/r/20210909072149.2934047-1-yangyingliang@xxxxxxxxxx Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/phy/microchip/sparx5_serdes.c b/drivers/phy/microchip/sparx5_serdes.c index 4076580fc2cd9..ab1b0986aa671 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];