diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index d5138c3a156b..b84f7861e438 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1341,9 +1341,14 @@ int __must_check i915_gem_object_get_pages(struct drm_i915_gem_object *obj); static inline struct page *i915_gem_object_get_page(struct drm_i915_gem_object *obj, int n) { struct scatterlist *sg = obj->pages->sgl; - while (n >= SG_MAX_SINGLE_ALLOC) { + int nents = obj->pages->nents; + while (nents > SG_MAX_SINGLE_ALLOC) { + if (n < SG_MAX_SINGLE_ALLOC - 1) + break; + sg = sg_chain_ptr(sg + SG_MAX_SINGLE_ALLOC - 1); n -= SG_MAX_SINGLE_ALLOC - 1; + nents -= SG_MAX_SINGLE_ALLOC - 1; } return sg_page(sg+n); } |