[PATCH] drm/etnaviv: Use unsigned type to count the number of userspace pages

[Sui Jingfeng]

The unpin_user_pages() function takes an unsigned long argument to store
length of the number of user space pages, and struct drm_gem_object::size
is a size_t type. The number of pages can not be negative, hence, use an
unsigned variable to store the number of pages.

Signed-off-by: Sui Jingfeng <sui.jingf...@linux.dev>
---
 drivers/gpu/drm/etnaviv/etnaviv_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c 
b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index ce9c9233c4a6..fa0d193cec26 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -695,7 +695,7 @@ static void etnaviv_gem_userptr_release(struct 
etnaviv_gem_object *etnaviv_obj)
                kfree(etnaviv_obj->sgt);
        }
        if (etnaviv_obj->pages) {
-               int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
+               unsigned int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
 
                unpin_user_pages(etnaviv_obj->pages, npages);
                kvfree(etnaviv_obj->pages);
-- 
2.34.1