[PATCH 5.19 45/72] drm/amd/pm: Fix a potential gpu_metrics_table memory leak

Greg Kroah-Hartman
2022-09-02T12:54:32Z

From: Zhen Ni <nizhen@uniontech.com>

[ Upstream commit 5afb76522a0af0513b6dc01f84128a73206b051b ]

Memory is allocated for gpu_metrics_table in
smu_v13_0_4_init_smc_tables(), but not freed in
smu_v13_0_4_fini_smc_tables(). This may cause memory leaks, fix it.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Zhen Ni <nizhen@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_4_ppt.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_4_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_4_ppt.c
index 5a17b51aa0f9f..7df360c25d51e 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_4_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_4_ppt.c
@@ -190,6 +190,9 @@ static int smu_v13_0_4_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;
}

--
2.35.1