[PATCH] [v2] drm/radeon/dpm: fix a memleak in sumo_parse_power_table

[Zhipeng Lu]

The rdev->pm.dpm.ps allocated by kcalloc should be freed in every
following error-handling path. However, in the error-handling of
rdev->pm.power_state[i].clock_info the rdev->pm.dpm.ps is not freed,
resulting in a memleak in this function.

Fixes: 80ea2c129c76 ("drm/radeon/kms: add dpm support for sumo asics (v2)")
Signed-off-by: Zhipeng Lu <alexious at zju.edu.cn>
---

Changelog:

v2: Adding {} to make if statement correct.
---
 drivers/gpu/drm/radeon/sumo_dpm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/sumo_dpm.c b/drivers/gpu/drm/radeon/sumo_dpm.c
index f74f381af05f..d49c145db437 100644
--- a/drivers/gpu/drm/radeon/sumo_dpm.c
+++ b/drivers/gpu/drm/radeon/sumo_dpm.c
@@ -1493,8 +1493,10 @@ static int sumo_parse_power_table(struct radeon_device *rdev)
 		non_clock_array_index = power_state->v2.nonClockInfoIndex;
 		non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
 			&non_clock_info_array->nonClockInfo[non_clock_array_index];
-		if (!rdev->pm.power_state[i].clock_info)
+		if (!rdev->pm.power_state[i].clock_info) {
+			kfree(rdev->pm.dpm.ps);
 			return -EINVAL;
+		}
 		ps = kzalloc(sizeof(struct sumo_ps), GFP_KERNEL);
 		if (ps == NULL) {
 			kfree(rdev->pm.dpm.ps);
-- 
2.34.1