add a system_init function for system control

[project/netifd.git] / system-linux.c

diff --git a/system-linux.c b/system-linux.c
index 1dbb651..d09fd63 100644 (file)
--- a/system-linux.c
+++ b/system-linux.c
@@ -19,7 +19,7 @@
 static int sock_ioctl = -1;
 static struct nl_sock *sock_rtnl = NULL;
 
-static void __init system_init(void)
+int system_init(void)
 {
        sock_ioctl = socket(AF_LOCAL, SOCK_DGRAM, 0);
        fcntl(sock_ioctl, F_SETFD, fcntl(sock_ioctl, F_GETFD) | FD_CLOEXEC);
@@ -30,12 +30,14 @@ static void __init system_init(void)
                        sock_rtnl = NULL;
                }
        }
+
+       return -(sock_ioctl < 0 || !sock_rtnl);
 }
 
 static int system_rtnl_call(struct nl_msg *msg)
 {
-       return -!!(!sock_rtnl || nl_send_auto_complete(sock_rtnl, msg)
-                                       || nl_wait_for_ack(sock_rtnl));
+       return -(nl_send_auto_complete(sock_rtnl, msg)
+                       || nl_wait_for_ack(sock_rtnl));
 }
 
 int system_bridge_addbr(struct device *bridge)