drm/amdgpu: Optimize amdgpu_mmhub_ras_late_init/amdgpu_mmhub_ras_fini function code

Optimize amdgpu_mmhub_ras_late_init/amdgpu_mmhub_ras_fini function code.
Signed-off-by: yipechai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_mmhub.c

@@ -26,43 +26,12 @@
 
 int amdgpu_mmhub_ras_late_init(struct amdgpu_device *adev, void *ras_info)
 {
-	int r;
-	struct ras_ih_if ih_info = {
-		.cb = NULL,
-	};
-	struct ras_fs_if fs_info = {
-		.sysfs_name = "mmhub_err_count",
-	};
-
-	if (!adev->mmhub.ras_if) {
-		adev->mmhub.ras_if = kmalloc(sizeof(struct ras_common_if), GFP_KERNEL);
-		if (!adev->mmhub.ras_if)
-			return -ENOMEM;
-		adev->mmhub.ras_if->block = AMDGPU_RAS_BLOCK__MMHUB;
-		adev->mmhub.ras_if->type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
-		adev->mmhub.ras_if->sub_block_index = 0;
-	}
-	ih_info.head = fs_info.head = *adev->mmhub.ras_if;
-	r = amdgpu_ras_late_init(adev, adev->mmhub.ras_if,
-				 &fs_info, &ih_info);
-	if (r || !amdgpu_ras_is_supported(adev, adev->mmhub.ras_if->block)) {
-		kfree(adev->mmhub.ras_if);
-		adev->mmhub.ras_if = NULL;
-	}
-
-	return r;
+	return amdgpu_ras_block_late_init(adev, adev->mmhub.ras_if);
 }
 
 void amdgpu_mmhub_ras_fini(struct amdgpu_device *adev)
 {
 	if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__MMHUB) &&
-			adev->mmhub.ras_if) {
-		struct ras_common_if *ras_if = adev->mmhub.ras_if;
-		struct ras_ih_if ih_info = {
-			.cb = NULL,
-		};
-
-		amdgpu_ras_late_fini(adev, ras_if, &ih_info);
-		kfree(ras_if);
-	}
+			adev->mmhub.ras_if)
+		amdgpu_ras_block_late_fini(adev, adev->mmhub.ras_if);
 }

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

@@ -1282,6 +1282,8 @@ static void gmc_v9_0_set_mmhub_ras_funcs(struct amdgpu_device *adev)
 
 		strcpy(adev->mmhub.ras->ras_block.ras_comm.name, "mmhub");
 		adev->mmhub.ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__MMHUB;
+		adev->mmhub.ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
+		adev->mmhub.ras_if = &adev->mmhub.ras->ras_block.ras_comm;
 
 		/* If don't define special ras_late_init function, use default ras_late_init */
 		if (!adev->mmhub.ras->ras_block.ras_late_init)