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authorKunwu Chan <chentao@kylinos.cn>2023-12-01 08:54:47 +0300
committerIlpo Järvinen <ilpo.jarvinen@linux.intel.com>2023-12-04 16:01:46 +0300
commit3494a594315b56516988afb6854d75dee5b501db (patch)
treeaaf6eb872281f056c7b446ff96672af54ad006d6 /drivers/platform
parent2c7c857f5fed997be93047d2de853d7f10c8defe (diff)
downloadlinux-3494a594315b56516988afb6854d75dee5b501db.tar.xz
platform/mellanox: Check devm_hwmon_device_register_with_groups() return value
devm_hwmon_device_register_with_groups() returns an error pointer upon failure. Check its return value for errors. Compile-tested only. Fixes: 1a218d312e65 ("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>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/mellanox/mlxbf-pmc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/platform/mellanox/mlxbf-pmc.c b/drivers/platform/mellanox/mlxbf-pmc.c
index d0d1cfc55c5f..1dd84c7a79de 100644
--- a/drivers/platform/mellanox/mlxbf-pmc.c
+++ b/drivers/platform/mellanox/mlxbf-pmc.c
@@ -2075,6 +2075,8 @@ 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;