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| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2014-09-26 15:05:22 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-09-29 15:31:01 +0200 |
| commit | c479f4383ea8940dd6f88da61798ad31feb33e51 (patch) | |
| tree | 0904e286cbbf9d300385f4714584ab3d8bb4e180 | |
| parent | e9681366ea9e76ab8f75e84351f2f3ca63ee542c (diff) | |
| download | linux-c479f4383ea8940dd6f88da61798ad31feb33e51.tar.gz linux-c479f4383ea8940dd6f88da61798ad31feb33e51.tar.bz2 linux-c479f4383ea8940dd6f88da61798ad31feb33e51.zip | |
drm/i915: Do not leak pages when freeing userptr objects
sg_alloc_table_from_pages() can build us a table with coalesced ranges which
means we need to iterate over pages and not sg table entries when releasing
page references.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Barbalho, Rafael" <rafael.barbalho@intel.com>
Tested-by: Rafael Barbalho <rafael.barbalho@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
[danvet: Remove unused local variable sg.]
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_userptr.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c index f5efbb836e5c..d182058383a9 100644 --- a/drivers/gpu/drm/i915/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/i915_gem_userptr.c @@ -689,16 +689,15 @@ i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj) static void i915_gem_userptr_put_pages(struct drm_i915_gem_object *obj) { - struct scatterlist *sg; - int i; + struct sg_page_iter sg_iter; BUG_ON(obj->userptr.work != NULL); if (obj->madv != I915_MADV_WILLNEED) obj->dirty = 0; - for_each_sg(obj->pages->sgl, sg, obj->pages->nents, i) { - struct page *page = sg_page(sg); + for_each_sg_page(obj->pages->sgl, &sg_iter, obj->pages->nents, 0) { + struct page *page = sg_page_iter_page(&sg_iter); if (obj->dirty) set_page_dirty(page); |