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drm/amdgpu: Release hive reference properly

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[ Upstream commit c1456fadce ]

xgmi hive reference is taken on function entry, but not released
correctly for all paths. Use __free() to release reference properly.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Ce Sun <cesun102@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lijo Lazar
2025-09-02 11:37:37 +05:30
committed by Greg Kroah-Hartman
parent 5a577de86c
commit cfee28ef80
2 changed files with 7 additions and 4 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@@ -6880,7 +6880,8 @@ pci_ers_result_t amdgpu_pci_error_detected(struct pci_dev *pdev, pci_channel_sta
{
struct drm_device *dev = pci_get_drvdata(pdev);
struct amdgpu_device *adev = drm_to_adev(dev);
struct amdgpu_hive_info *hive = amdgpu_get_xgmi_hive(adev);
struct amdgpu_hive_info *hive __free(xgmi_put_hive) =
amdgpu_get_xgmi_hive(adev);
struct amdgpu_reset_context reset_context;
struct list_head device_list;
@@ -6911,10 +6912,8 @@ pci_ers_result_t amdgpu_pci_error_detected(struct pci_dev *pdev, pci_channel_sta
amdgpu_device_recovery_get_reset_lock(adev, &device_list);
amdgpu_device_halt_activities(adev, NULL, &reset_context, &device_list,
hive, false);
if (hive) {
if (hive)
mutex_unlock(&hive->hive_lock);
amdgpu_put_xgmi_hive(hive);
}
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
/* Permanent error, prepare for device removal */

4
drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h
View File

@@ -126,4 +126,8 @@ uint32_t amdgpu_xgmi_get_max_bandwidth(struct amdgpu_device *adev);
void amgpu_xgmi_set_max_speed_width(struct amdgpu_device *adev,
uint16_t max_speed, uint8_t max_width);
/* Cleanup macro for use with __free(xgmi_put_hive) */
DEFINE_FREE(xgmi_put_hive, struct amdgpu_hive_info *, if (_T) amdgpu_put_xgmi_hive(_T))
#endif