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platform/mellanox: Check devm_hwmon_device_register_with_groups() return value

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[ Upstream commit 3494a59431 ]

devm_hwmon_device_register_with_groups() returns an error pointer upon
failure. Check its return value for errors.

Compile-tested only.

Fixes: 1a218d312e ("platform/mellanox: mlxbf-pmc: Add Mellanox BlueField PMC driver")
Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Suggested-by: Vadim Pasternak <vadimp@nvidia.com>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20231201055447.2356001-1-chentao@kylinos.cn
[ij: split the change into two]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kunwu Chan 2023-12-01 13:54:47 +08:00 • committed by Greg Kroah-Hartman
commit 3c32379695
1 changed files with 2 additions and 0 deletions
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2
drivers/platform/mellanox/mlxbf-pmc.c
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@ -1454,6 +1454,8 @@ static int mlxbf_pmc_probe(struct platform_device *pdev)
pmc->hwmon_dev = devm_hwmon_device_register_with_groups(
dev, "bfperf", pmc, pmc->groups);
if (IS_ERR(pmc->hwmon_dev))
return PTR_ERR(pmc->hwmon_dev);
platform_set_drvdata(pdev, pmc);
return 0;