From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jordan Crouse Subject: [PATCH] drm: use size_t variables to iterate through pages Date: Tue, 3 Oct 2017 09:38:11 -0600 Message-ID: <1507045091-6550-2-git-send-email-jcrouse@codeaurora.org> Return-path: Sender: linux-arm-msm-owner@vger.kernel.org To: dri-devel@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org drm_gem_get_pages() and drm_gem_put_pages() calculate the number of pages to operate on from obj->size which is a size_t. Use similarly sized variables to calculate and iterate through the pages to avoid possibly losing bits from the page calculation. Signed-off-by: Jordan Crouse --- drivers/gpu/drm/drm_gem.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index af62017..a8c146d 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -550,7 +550,7 @@ struct page **drm_gem_get_pages(struct drm_gem_object *obj) { struct address_space *mapping; struct page *p, **pages; - int i, npages; + size_t i, npages; /* This is the shared memory object that backs the GEM resource */ mapping = obj->filp->f_mapping; @@ -603,7 +603,7 @@ struct page **drm_gem_get_pages(struct drm_gem_object *obj) void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages, bool dirty, bool accessed) { - int i, npages; + size_t i, npages; /* We already BUG_ON() for non-page-aligned sizes in * drm_gem_object_init(), so we should never hit this unless -- 1.9.1