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From 7b937b59485080a47bc9c3906bfeff2d63c3dd48 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Fri, 14 Sep 2018 21:03:37 +0200
Subject: [PATCH 0284/2940] drm/amdgpu: don't allocate zero sized kernel BOs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Just free the BO if the size should be zero.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 7d01aa8d5b6d..12690ba4d1ea 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -274,6 +274,11 @@ int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
bool free = false;
int r;
+ if (!size) {
+ amdgpu_bo_unref(bo_ptr);
+ return 0;
+ }
+
memset(&bp, 0, sizeof(bp));
bp.size = size;
bp.byte_align = align;
--
2.17.1
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