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drm/prime: Use unsigned type for number of pages

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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>
This commit is contained in:
Thierry Reding 2014-06-04 09:18:29 +02:00
parent c6a843256a
commit 34eab43ed2
2 changed files with 2 additions and 2 deletions
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2
drivers/gpu/drm/drm_prime.c
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@ -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;

2
include/drm/drmP.h
View file

@ -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);