drm/prime: Use unsigned type for number of pages

The number of pages can never be negative, so an unsigned type is
enough. This also matches the type of the n_pages argument of the
sg_alloc_table_from_pages() function.

Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 78ca30808422fc56c67acb4659f38f06a555b1db..e15882fd45a3eb3f8b13ac87aa23c7af5545c7eb 100644 (file)
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -669,7 +669,7 @@ int drm_prime_fd_to_handle_ioctl(struct drm_device *dev, void *data,
  * the driver is responsible for mapping the pages into the
  * importers address space for use with dma_buf itself.
  */
-struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages)
+struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages)
 {
        struct sg_table *sg = NULL;
        int ret;

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 53ed87698a74e0e4ae121e75607d74645456525a..75b259492a8d5b6e30586f32e4a34d32a7c6ef35 100644 (file)
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -986,7 +986,7 @@ extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
 
 extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
                                            dma_addr_t *addrs, int max_pages);
-extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages);
+extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages);
 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);