From: Zhipeng Lu <alexious@zju.edu.cn>
Date: Mon, 4 Dec 2023 10:21:54 +0000 (+0800)
Subject: drm/radeon/trinity_dpm: fix a memleak in trinity_parse_power_table
X-Git-Tag: v6.6.17~1105
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0564e8a427914015d773a32f6e9baa2bd2f38a37;p=platform%2Fkernel%2Flinux-rpi.git

drm/radeon/trinity_dpm: fix a memleak in trinity_parse_power_table

[ Upstream commit 28c28d7f77c06ac2c0b8f9c82bc04eba22912b3b ]

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: d70229f70447 ("drm/radeon/kms: add dpm support for trinity asics")
Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c
index 08ea1c8..ef1cc7b 100644
--- a/drivers/gpu/drm/radeon/trinity_dpm.c
+++ b/drivers/gpu/drm/radeon/trinity_dpm.c
@@ -1726,8 +1726,10 @@ static int trinity_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);