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platform/x86/intel-uncore-freq: Don't present root domain on error

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commit db643cb7eb upstream.

If none of the clusters are added because of some error, fail to load
driver without presenting root domain. In this case root domain will
present invalid data.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Fixes: 01c10f88c9 ("platform/x86/intel-uncore-freq: tpmi: Provide cluster level control")
Cc: <stable@vger.kernel.org> # 6.5+
Link: https://lore.kernel.org/r/20240415215210.2824868-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Srinivas Pandruvada
2024-04-15 14:52:10 -07:00
committed by Greg Kroah-Hartman
parent 1dbeaa75ce
commit 41fa936c3a
1 changed files with 7 additions and 0 deletions
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drivers/platform/x86/intel/uncore-frequency/uncore-frequency-tpmi.c
+7
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@@ -240,6 +240,7 @@ static int uncore_probe(struct auxiliary_device *auxdev, const struct auxiliary_
bool read_blocked = 0, write_blocked = 0;
struct intel_tpmi_plat_info *plat_info;
struct tpmi_uncore_struct *tpmi_uncore;
bool uncore_sysfs_added = false;
int ret, i, pkg = 0;
int num_resources;
@@ -384,9 +385,15 @@ static int uncore_probe(struct auxiliary_device *auxdev, const struct auxiliary_
}
/* Point to next cluster offset */
cluster_offset >>= UNCORE_MAX_CLUSTER_PER_DOMAIN;
uncore_sysfs_added = true;
}
}
if (!uncore_sysfs_added) {
ret = -ENODEV;
goto remove_clusters;
}
auxiliary_set_drvdata(auxdev, tpmi_uncore);
tpmi_uncore->root_cluster.root_domain = true;