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From: Rafael Mendonca <rafaelmendsr@gmail.com>
To: "Evan Quan" <evan.quan@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"Pan, Xinhui" <Xinhui.Pan@amd.com>,
	"David Airlie" <airlied@gmail.com>,
	"Daniel Vetter" <daniel@ffwll.ch>
Cc: Rafael Mendonca <rafaelmendsr@gmail.com>,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] drm/amdgpu/powerplay/psm: Fix memory leak in power state init
Date: Mon, 17 Oct 2022 21:53:57 -0300	[thread overview]
Message-ID: <20221018005357.887009-1-rafaelmendsr@gmail.com> (raw)

Commit 902bc65de0b3 ("drm/amdgpu/powerplay/psm: return an error in power
state init") made the power state init function return early in case of
failure to get an entry from the powerplay table, but it missed to clean up
the allocated memory for the current power state before returning.

Fixes: 902bc65de0b3 ("drm/amdgpu/powerplay/psm: return an error in power state init")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
---
 drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
index 67d7da0b6fed..1d829402cd2e 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/pp_psm.c
@@ -75,8 +75,10 @@ int psm_init_power_state_table(struct pp_hwmgr *hwmgr)
 	for (i = 0; i < table_entries; i++) {
 		result = hwmgr->hwmgr_func->get_pp_table_entry(hwmgr, i, state);
 		if (result) {
+			kfree(hwmgr->current_ps);
 			kfree(hwmgr->request_ps);
 			kfree(hwmgr->ps);
+			hwmgr->current_ps = NULL;
 			hwmgr->request_ps = NULL;
 			hwmgr->ps = NULL;
 			return -EINVAL;
-- 
2.34.1


             reply	other threads:[~2022-10-18  0:54 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-18  0:53 Rafael Mendonca [this message]
2022-10-18  1:06 ` Quan, Evan
2022-10-18 15:59   ` Alex Deucher

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