summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
diff options
context:
space:
mode:
authorStefan Agner <stefan.agner@toradex.com>2017-09-26 16:04:08 +0200
committerStefan Agner <stefan.agner@toradex.com>2017-09-26 18:11:18 +0200
commit1f4d46cea2bc1886a13ae9adfcd9e4243eed6a4c (patch)
tree2001999c70f8e46b192fc552590810aab35710e3 /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
parentd152ae9d4704d8c7b3775e3b1a20e62aa3b1eed8 (diff)
parentb52c9082f2eb3a6f7fbbc86fad3eaa2a1725da66 (diff)
Merge tag 'v4.4.88' into toradex_vf_4.4-next
This is the 4.4.88 stable release
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 475c38fe9245..e40a6d8b0b92 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1126,6 +1126,9 @@ static ssize_t amdgpu_ttm_vram_read(struct file *f, char __user *buf,
if (size & 0x3 || *pos & 0x3)
return -EINVAL;
+ if (*pos >= adev->mc.mc_vram_size)
+ return -ENXIO;
+
while (size) {
unsigned long flags;
uint32_t value;