drm: GEM handles are u32, not int

Several functions in the GEM kernel API used int as handle type, but
user API has it __u32 which is also the intended type.

Replace int with u32.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 140bee1..0e6c9cc 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -111,7 +111,8 @@
 {
 	struct drm_i915_gem_create *args = data;
 	struct drm_gem_object *obj;
-	int handle, ret;
+	int ret;
+	u32 handle;
 
 	args->size = roundup(args->size, PAGE_SIZE);