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| 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/gem/i915_gem_userptr.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/gem/i915_gem_userptr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c index 9348b1804d53..1d3ebdf4069b 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c @@ -128,12 +128,16 @@ static void i915_gem_object_userptr_drop_ref(struct drm_i915_gem_object *obj) static int i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj) { - const unsigned long num_pages = obj->base.size >> PAGE_SHIFT; unsigned int max_segment = i915_sg_segment_size(obj->base.dev->dev); struct sg_table *st; struct page **pvec; + unsigned int num_pages; /* limited by sg_alloc_table_from_pages_segment */ int ret; + if (overflows_type(obj->base.size >> PAGE_SHIFT, num_pages)) + return -E2BIG; + + num_pages = obj->base.size >> PAGE_SHIFT; st = kmalloc(sizeof(*st), GFP_KERNEL); if (!st) return -ENOMEM; |