media: media-device.c: zero reserved fields

MEDIA_IOC_SETUP_LINK didn't zero the reserved field of the media_link_desc
struct. Do so in media_device_setup_link().

MEDIA_IOC_ENUM_LINKS didn't zero the reserved field of the media_links_enum
struct. Do so in media_device_enum_links().
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/media-device.c

@@ -190,6 +190,7 @@ static long media_device_enum_links(struct media_device *mdev,
 			ulink_desc++;
 		}
 	}
+	memset(links->reserved, 0, sizeof(links->reserved));
 
 	return 0;
 }
@@ -218,6 +219,8 @@ static long media_device_setup_link(struct media_device *mdev,
 	if (link == NULL)
 		return -EINVAL;
 
+	memset(linkd->reserved, 0, sizeof(linkd->reserved));
+
 	/* Setup the link on both entities. */
 	return __media_entity_setup_link(link, linkd->flags);
 }