diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-25 21:12:51 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-01-25 21:12:51 +0100 |
| commit | 8d71c78e1aeec37eca4f0a4c190fd3e9548721de (patch) | |
| tree | 7182211bc619e2207a507b24c02f2c990e6999cc /drivers/gpu/drm/i915/i915_scatterlist.c | |
| parent | 0c8fb2469438256a9cbb690d538437db6f845df8 (diff) | |
| parent | 68de345e101ce9a24e5c8849e69dd0dba2e8c9b2 (diff) | |
| download | linux-8d71c78e1aeec37eca4f0a4c190fd3e9548721de.tar.gz | |
Merge drm/drm-next into drm-misc-next
Backmerging to sync with other DRM trees.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_scatterlist.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_scatterlist.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_scatterlist.c b/drivers/gpu/drm/i915/i915_scatterlist.c index 114e5e39aa72..756289e43dff 100644 --- a/drivers/gpu/drm/i915/i915_scatterlist.c +++ b/drivers/gpu/drm/i915/i915_scatterlist.c @@ -96,6 +96,11 @@ struct i915_refct_sgt *i915_rsgt_from_mm_node(const struct drm_mm_node *node, i915_refct_sgt_init(rsgt, node->size << PAGE_SHIFT); st = &rsgt->table; + /* restricted by sg_alloc_table */ + if (WARN_ON(overflows_type(DIV_ROUND_UP_ULL(node->size, segment_pages), + unsigned int))) + return ERR_PTR(-E2BIG); + if (sg_alloc_table(st, DIV_ROUND_UP_ULL(node->size, segment_pages), GFP_KERNEL)) { i915_refct_sgt_put(rsgt); @@ -177,6 +182,10 @@ struct i915_refct_sgt *i915_rsgt_from_buddy_resource(struct ttm_resource *res, i915_refct_sgt_init(rsgt, size); st = &rsgt->table; + /* restricted by sg_alloc_table */ + if (WARN_ON(overflows_type(PFN_UP(res->size), unsigned int))) + return ERR_PTR(-E2BIG); + if (sg_alloc_table(st, PFN_UP(res->size), GFP_KERNEL)) { i915_refct_sgt_put(rsgt); return ERR_PTR(-ENOMEM); |