[PATCH 2/3] drm/amdgpu: fix memory leak during TDR test

[Monk Liu]

fix system memory leak regression introduced
by this previous change of 201331 - Single VF Mode Test

Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
 drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 9d15acf..3363f1c 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -978,8 +978,12 @@ int smu_v11_0_init_max_sustainable_clocks(struct smu_context *smu)
 	struct smu_11_0_max_sustainable_clocks *max_sustainable_clocks;
 	int ret = 0;
 
-	max_sustainable_clocks = kzalloc(sizeof(struct smu_11_0_max_sustainable_clocks),
+	if (smu->smu_table.max_sustainable_clocks == NULL)
+		max_sustainable_clocks = kzalloc(sizeof(struct smu_11_0_max_sustainable_clocks),
 					 GFP_KERNEL);
+	else
+		max_sustainable_clocks = smu->smu_table.max_sustainable_clocks;
+
 	smu->smu_table.max_sustainable_clocks = (void *)max_sustainable_clocks;
 
 	max_sustainable_clocks->uclock = smu->smu_table.boot_values.uclk / 100;
-- 
2.7.4