[media] media-device: use unsigned ints on some places

The entity->num_pads are defined as u16. So, better to use an
unsigned int, as this prevents additional warnings when W=2
(or W=1 on some architectures).

The "i" counter at __media_device_get_topology() is also a
monotonic counter that should never be below zero. So,
make it unsigned too.

Suggested-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/media-device.c b/drivers/media/media-device.c
index f177d50c7a446cb29c6f5cad75443d99dde32a12..3d0a77c1c8998be03880fcbb4698eb9f4bb380ec 100644 (file)
--- a/drivers/media/media-device.c
+++ b/drivers/media/media-device.c
@@ -243,7 +243,8 @@ static long __media_device_get_topology(struct media_device *mdev,
        struct media_v2_interface uintf;
        struct media_v2_pad upad;
        struct media_v2_link ulink;
-       int ret = 0, i;
+       unsigned int i;
+       int ret = 0;
 
        topo->topology_version = mdev->topology_version;
 
@@ -609,7 +610,7 @@ EXPORT_SYMBOL_GPL(media_device_unregister);
 int __must_check media_device_register_entity(struct media_device *mdev,
                                              struct media_entity *entity)
 {
-       int i;
+       unsigned int i;
 
        if (entity->function == MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN ||
            entity->function == MEDIA_ENT_F_UNKNOWN)
@@ -646,10 +647,10 @@ EXPORT_SYMBOL_GPL(media_device_register_entity);
  */
 void media_device_unregister_entity(struct media_entity *entity)
 {
-       int i;
        struct media_device *mdev = entity->graph_obj.mdev;
        struct media_link *link, *tmp;
        struct media_interface *intf;
+       unsigned int i;
 
        if (mdev == NULL)
                return;