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drm/amdgpu: refine error handling in amdgpu_ttm_tt_pin_userptr

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[ Upstream commit 46186667f9 ]

Free sg table when dma_map_sgtable() failed to avoid memory leak.

Signed-off-by: Lang Yu <lang.yu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lang Yu
2024-10-18 17:21:09 +08:00
committed by Greg Kroah-Hartman
parent 3295bd2364
commit efb054752f
1 changed files with 3 additions and 1 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+3 -1
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@@ -794,7 +794,7 @@ static int amdgpu_ttm_tt_pin_userptr(struct ttm_device *bdev,
/* Map SG to device */
r = dma_map_sgtable(adev->dev, ttm->sg, direction, 0);
if (r)
goto release_sg;
goto release_sg_table;
/* convert SG to linear array of pages and dma addresses */
drm_prime_sg_to_dma_addr_array(ttm->sg, gtt->ttm.dma_address,
@@ -802,6 +802,8 @@ static int amdgpu_ttm_tt_pin_userptr(struct ttm_device *bdev,
return 0;
release_sg_table:
sg_free_table(ttm->sg);
release_sg:
kfree(ttm->sg);
ttm->sg = NULL;