drm/amd/powerplay: fix memory leak in powerplay

cgs device not free.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
index c05e5a8..2ed81cd 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
@@ -45,7 +45,7 @@ static int amdgpu_create_pp_handle(struct amdgpu_device *adev)
        pp_init.chip_id = adev->asic_type;
        pp_init.pm_en = (amdgpu_dpm != 0 && !amdgpu_sriov_vf(adev)) ? true : false;
        pp_init.feature_mask = amdgpu_pp_feature_mask;
-       pp_init.device = amdgpu_cgs_create_device(adev);
+       pp_init.device = amd_pp->cgs_device;
        ret = amd_powerplay_create(&pp_init, &(amd_pp->pp_handle));
        if (ret)
                return -EINVAL;
@@ -74,6 +74,7 @@ static int amdgpu_pp_early_init(void *handle)
        case CHIP_VEGA10:
        case CHIP_RAVEN:
                adev->pp_enabled = true;
+               amd_pp->cgs_device = amdgpu_cgs_create_device(adev);
                if (amdgpu_create_pp_handle(adev))
                        return -EINVAL;
                amd_pp->ip_funcs = &pp_ip_funcs;
@@ -97,7 +98,7 @@ static int amdgpu_pp_early_init(void *handle)
                        amd_pp->ip_funcs = &ci_dpm_ip_funcs;
                        amd_pp->pp_funcs = &ci_dpm_funcs;
                } else {
-                       adev->pp_enabled = true;
+                       amd_pp->cgs_device = amdgpu_cgs_create_device(adev);
                        if (amdgpu_create_pp_handle(adev))
                                return -EINVAL;
                        amd_pp->ip_funcs = &pp_ip_funcs;
@@ -211,8 +212,10 @@ static void amdgpu_pp_late_fini(void *handle)
                          adev->powerplay.pp_handle);
 
 
-       if (adev->pp_enabled)
+       if (adev->pp_enabled) {
                amd_powerplay_destroy(adev->powerplay.pp_handle);
+               amdgpu_cgs_destroy_device(adev->powerplay.cgs_device);
+       }
 }
 
 static int amdgpu_pp_suspend(void *handle)

diff --git a/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h b/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h
index 435da26..437d785 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amd_powerplay.h
@@ -268,6 +268,7 @@ struct pp_display_clock_request {
                                                                state << PP_STATE_SHIFT)
 
 struct amd_powerplay {
+       struct cgs_device *cgs_device;
        void *pp_handle;
        const struct amd_ip_funcs *ip_funcs;
        const struct amd_pm_funcs *pp_funcs;