linux-kernel - [PATCH AUTOSEL 5.10 19/28] drm/amd/amdgpu: fix potential memleak

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Message-Id: <20211126023343.442045-19-sashal@kernel.org>
Date:   Thu, 25 Nov 2021 21:33:34 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Bernard Zhao <bernard@...o.com>,
        Felix Kuehling <Felix.Kuehling@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>, christian.koenig@....com,
        Xinhui.Pan@....com, airlied@...ux.ie, daniel@...ll.ch,
        Hawking.Zhang@....com, john.clements@....com, jonathan.kim@....com,
        candice.li@....com, tao.zhou1@....com, kevin1.wang@....com,
        shaoyun.liu@....com, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 5.10 19/28] drm/amd/amdgpu: fix potential memleak

From: Bernard Zhao <bernard@...o.com>

[ Upstream commit 27dfaedc0d321b4ea4e10c53e4679d6911ab17aa ]

In function amdgpu_get_xgmi_hive, when kobject_init_and_add failed
There is a potential memleak if not call kobject_put.

Reviewed-by: Felix Kuehling <Felix.Kuehling@....com>
Signed-off-by: Bernard Zhao <bernard@...o.com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
index 0526dec1d736e..042c85fc528bb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
@@ -358,6 +358,7 @@ struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev)
 			"%s", "xgmi_hive_info");
 	if (ret) {
 		dev_err(adev->dev, "XGMI: failed initializing kobject for xgmi hive\n");
+		kobject_put(&hive->kobj);
 		kfree(hive);
 		hive = NULL;
 		goto pro_end;
-- 
2.33.0