linux-kernel - [PATCH 5.3 055/140] drm/amdgpu: fix error handling in amdgpu_bo_list

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Message-Id: <20191108174908.790526222@linuxfoundation.org>
Date:   Fri,  8 Nov 2019 19:49:43 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Christian König <christian.koenig@....com>,
        Huang Rui <ray.huang@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.3 055/140] drm/amdgpu: fix error handling in amdgpu_bo_list_create

From: Christian König <christian.koenig@....com>

[ Upstream commit de51a5019ff32960218da8fd899fa3f361b031e9 ]

We need to drop normal and userptr BOs separately.

Signed-off-by: Christian König <christian.koenig@....com>
Acked-by: Huang Rui <ray.huang@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
index 61e38e43ad1d5..85b0515c0fdcf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
@@ -140,7 +140,12 @@ int amdgpu_bo_list_create(struct amdgpu_device *adev, struct drm_file *filp,
 	return 0;
 
 error_free:
-	while (i--) {
+	for (i = 0; i < last_entry; ++i) {
+		struct amdgpu_bo *bo = ttm_to_amdgpu_bo(array[i].tv.bo);
+
+		amdgpu_bo_unref(&bo);
+	}
+	for (i = first_userptr; i < num_entries; ++i) {
 		struct amdgpu_bo *bo = ttm_to_amdgpu_bo(array[i].tv.bo);
 
 		amdgpu_bo_unref(&bo);
-- 
2.20.1