diff options
| author | Dave Airlie <airlied@redhat.com> | 2023-10-13 11:04:53 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2023-10-13 11:05:40 +1000 |
| commit | dcad98b140554c325fa2ec7d42311edc7a79cdbb (patch) | |
| tree | 66c0216a655edab6c7ac45bbbbc0d90b9fe623f6 /drivers/gpu/drm/drm_gem.c | |
| parent | 94f6f0550c625fab1f373bb86a6669b45e9748b3 (diff) | |
| parent | c1165df2be2fffe3adeeaa68f4ee4325108c5e4e (diff) | |
Merge tag 'drm-misc-fixes-2023-10-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Short summary of fixes pull:
* atomic-helper: Relax checks for unregistered connectors
* dma-buf: Work around race condition when retrieving fence timestamp
* gem: Avoid OOB access in BO memory range
* panel:
* boe-tv101wun-ml6: Fix flickering
* simpledrm: Fix error output
* vwmgfx:
* Fix size calculation in texture-state code
* Ref GEM BOs in surfaces
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20231012111638.GA25037@linux-uq9g
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gem.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 6129b89bb366..44a948b80ee1 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -540,7 +540,7 @@ struct page **drm_gem_get_pages(struct drm_gem_object *obj) struct page **pages; struct folio *folio; struct folio_batch fbatch; - int i, j, npages; + long i, j, npages; if (WARN_ON(!obj->filp)) return ERR_PTR(-EINVAL); @@ -564,11 +564,13 @@ struct page **drm_gem_get_pages(struct drm_gem_object *obj) i = 0; while (i < npages) { + long nr; folio = shmem_read_folio_gfp(mapping, i, mapping_gfp_mask(mapping)); if (IS_ERR(folio)) goto fail; - for (j = 0; j < folio_nr_pages(folio); j++, i++) + nr = min(npages - i, folio_nr_pages(folio)); + for (j = 0; j < nr; j++, i++) pages[i] = folio_file_page(folio, i); /* Make sure shmem keeps __GFP_DMA32 allocated pages in the |