Replace a few more open-coded overflow checks with the macro.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_stolen.c | 2 +-
drivers/gpu/drm/i915/i915_vma.c | 3 ++-
drivers/gpu/drm/i915/intel_bios.c | 7 +++++--
3 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index 0e9b99941946..f1a1d33febcd 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -505,7 +505,7 @@ i915_pages_create_for_stolen(struct drm_device *dev,
struct sg_table *st;
struct scatterlist *sg;
- GEM_BUG_ON(offset > dev_priv->ggtt.stolen_size - size);
+ GEM_BUG_ON(range_overflows(offset, size, dev_priv->ggtt.stolen_size));
/* We hide that we have no struct page backing our stolen object
* by wrapping the contiguous physical allocation with a fake
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index d48c68214611..58f2483362ad 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -403,7 +403,8 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
if (flags & PIN_OFFSET_FIXED) {
u64 offset = flags & PIN_OFFSET_MASK;
- if (offset & (alignment - 1) || offset > end - size) {
+ if (offset & (alignment - 1) ||
+ range_overflows(offset, size, end)) {
ret = -EINVAL;
goto err_unpin;
}
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index f6d37558301d..e144f033f4b5 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1416,13 +1416,16 @@ bool intel_bios_is_valid_vbt(const void *buf, size_t size)
return false;
}
- if (vbt->bdb_offset + sizeof(struct bdb_header) > size) {
+ if (range_overflows_t(size_t,
+ vbt->bdb_offset,
+ sizeof(struct bdb_header),
+ size)) {
DRM_DEBUG_DRIVER("BDB header incomplete\n");
return false;
}
bdb = get_bdb_header(vbt);
- if (vbt->bdb_offset + bdb->bdb_size > size) {
+ if (range_overflows_t(size_t, vbt->bdb_offset, bdb->bdb_size, size)) {
DRM_DEBUG_DRIVER("BDB incomplete\n");
return false;
}
--
2.11.0
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