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path: root/drivers/gpu/drm/i915/i915_hwmon.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_hwmon.c')
-rw-r--r--drivers/gpu/drm/i915/i915_hwmon.c46
1 files changed, 32 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/i915_hwmon.c b/drivers/gpu/drm/i915/i915_hwmon.c
index b758fd110c..c0662a022f 100644
--- a/drivers/gpu/drm/i915/i915_hwmon.c
+++ b/drivers/gpu/drm/i915/i915_hwmon.c
@@ -793,7 +793,7 @@ void i915_hwmon_register(struct drm_i915_private *i915)
if (!IS_DGFX(i915))
return;
- hwmon = devm_kzalloc(dev, sizeof(*hwmon), GFP_KERNEL);
+ hwmon = kzalloc(sizeof(*hwmon), GFP_KERNEL);
if (!hwmon)
return;
@@ -819,14 +819,12 @@ void i915_hwmon_register(struct drm_i915_private *i915)
hwm_get_preregistration_info(i915);
/* hwmon_dev points to device hwmon<i> */
- hwmon_dev = devm_hwmon_device_register_with_info(dev, ddat->name,
- ddat,
- &hwm_chip_info,
- hwm_groups);
- if (IS_ERR(hwmon_dev)) {
- i915->hwmon = NULL;
- return;
- }
+ hwmon_dev = hwmon_device_register_with_info(dev, ddat->name,
+ ddat,
+ &hwm_chip_info,
+ hwm_groups);
+ if (IS_ERR(hwmon_dev))
+ goto err;
ddat->hwmon_dev = hwmon_dev;
@@ -839,16 +837,36 @@ void i915_hwmon_register(struct drm_i915_private *i915)
if (!hwm_gt_is_visible(ddat_gt, hwmon_energy, hwmon_energy_input, 0))
continue;
- hwmon_dev = devm_hwmon_device_register_with_info(dev, ddat_gt->name,
- ddat_gt,
- &hwm_gt_chip_info,
- NULL);
+ hwmon_dev = hwmon_device_register_with_info(dev, ddat_gt->name,
+ ddat_gt,
+ &hwm_gt_chip_info,
+ NULL);
if (!IS_ERR(hwmon_dev))
ddat_gt->hwmon_dev = hwmon_dev;
}
+ return;
+err:
+ i915_hwmon_unregister(i915);
}
void i915_hwmon_unregister(struct drm_i915_private *i915)
{
- fetch_and_zero(&i915->hwmon);
+ struct i915_hwmon *hwmon = i915->hwmon;
+ struct intel_gt *gt;
+ int i;
+
+ if (!hwmon)
+ return;
+
+ for_each_gt(gt, i915, i)
+ if (hwmon->ddat_gt[i].hwmon_dev)
+ hwmon_device_unregister(hwmon->ddat_gt[i].hwmon_dev);
+
+ if (hwmon->ddat.hwmon_dev)
+ hwmon_device_unregister(hwmon->ddat.hwmon_dev);
+
+ mutex_destroy(&hwmon->hwmon_lock);
+
+ kfree(i915->hwmon);
+ i915->hwmon = NULL;
}