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drm: amdgpu: Use the correct size when allocating memory

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When '*sgt' is allocated, we must allocated 'sizeof(**sgt)' bytes instead
of 'sizeof(*sg)'.

The sizeof(*sg) is bigger than sizeof(**sgt) so this wastes memory but
it won't lead to corruption.

Fixes: f44ffd677f ("drm/amdgpu: add support for exporting VRAM using DMA-buf v3")
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Christophe JAILLET 2020-08-09 22:34:06 +02:00 committed by Alex Deucher
parent f878122841
commit 78484d7c74
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
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@ -462,7 +462,7 @@ int amdgpu_vram_mgr_alloc_sgt(struct amdgpu_device *adev,
unsigned int pages;
int i, r;
*sgt = kmalloc(sizeof(*sg), GFP_KERNEL);
*sgt = kmalloc(sizeof(**sgt), GFP_KERNEL);
if (!*sgt)
return -ENOMEM;