From 78484d7c747e30468b35bd5f19edf602f50162a7 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Sun, 9 Aug 2020 22:34:06 +0200 Subject: [PATCH] drm: amdgpu: Use the correct size when allocating memory MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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: f44ffd677fb3 ("drm/amdgpu: add support for exporting VRAM using DMA-buf v3") Reviewed-by: Christian König Signed-off-by: Christophe JAILLET Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index 134cc36e30c5..0739e259bf91 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -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; -- 2.20.1