linux-kernel - [PATCH 2/2] drm/amd/pm: Fix a potential gpu_metrics

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Message-Id: <20220803091959.10030-2-nizhen@uniontech.com>
Date:   Wed,  3 Aug 2022 17:19:59 +0800
From:   Zhen Ni <nizhen@...ontech.com>
To:     airlied@...ux.ie, daniel@...ll.ch, evan.quan@....com,
        alexander.deucher@....com, christian.koenig@....com,
        Xinhui.Pan@....com
Cc:     amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Zhen Ni <nizhen@...ontech.com>
Subject: [PATCH 2/2] drm/amd/pm: Fix a potential gpu_metrics_table memory leak

Memory is allocated for gpu_metrics_table in
smu_v13_0_5_init_smc_tables(), but not freed in
smu_v13_0_5_fini_smc_tables(). This may cause memory leaks, fix it.

Signed-off-by: Zhen Ni <nizhen@...ontech.com>
---
 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_5_ppt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_5_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_5_ppt.c
index b81711c4ff33..267c9c43a010 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_5_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_5_ppt.c
@@ -167,6 +167,9 @@ static int smu_v13_0_5_fini_smc_tables(struct smu_context *smu)
 	kfree(smu_table->watermarks_table);
 	smu_table->watermarks_table = NULL;
 
+	kfree(smu_table->gpu_metrics_table);
+	smu_table->gpu_metrics_table = NULL;
+
 	return 0;
 }
 
-- 
2.20.1