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From 24898ee3dcfc2ad54b24383b1c5ca5a8a92dd451 Mon Sep 17 00:00:00 2001
From: Ben Goz <ben.goz@amd.com>
Date: Sun, 16 Aug 2015 16:07:57 +0300
Subject: [PATCH 0819/4131] drm/amdgpu: Passing verification of NULL filep to
support mmap_bo
Signed-off-by: Ben Goz <ben.goz@amd.com>
Conflicts:
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
Change-Id: I162d7efd3e4bca393f690c4705f59bfbd46c3489
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 1c76f9e..9eac161 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -277,6 +277,8 @@ static void amdgpu_evict_flags(struct ttm_buffer_object *bo,
static int amdgpu_verify_access(struct ttm_buffer_object *bo, struct file *filp)
{
struct amdgpu_bo *abo = container_of(bo, struct amdgpu_bo, tbo);
+ if (filp == NULL)
+ return 0;
if (amdgpu_ttm_tt_get_usermm(bo->ttm))
return -EPERM;
--
2.7.4
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