Commit b072ef12 authored by Lang Yu's avatar Lang Yu Committed by Alex Deucher
Browse files

drm/amdkfd: fix a potential ttm->sg memory leak 



Memory is allocated for ttm->sg by kmalloc in kfd_mem_dmamap_userptr,
but isn't freed by kfree in kfd_mem_dmaunmap_userptr. Free it!

Fixes: 264fb4d3 ("drm/amdgpu: Add multi-GPU DMA mapping helpers")

Signed-off-by: default avatarLang Yu <lang.yu@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 7ab09650

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c

+1 −0
Original line number Diff line number Diff line
@@ -563,6 +563,7 @@ kfd_mem_dmaunmap_userptr(struct kgd_mem *mem, 


	dma_unmap_sgtable(adev->dev, ttm->sg, direction, 0);

	sg_free_table(ttm->sg);

	kfree(ttm->sg);

	ttm->sg = NULL;

}