netdev: do not assign unused values

diff --git a/src/network/netdev/tuntap.c b/src/network/netdev/tuntap.c
index 21fb7ab067b0f7e20366a245ca026926f173de69..47c56cfd70fc05059a3f43b1c8142a5a1e025dd4 100644 (file)
--- a/src/network/netdev/tuntap.c
+++ b/src/network/netdev/tuntap.c
@@ -64,8 +64,7 @@ static int netdev_tuntap_add(NetDev *netdev, struct ifreq *ifr) {
         if (fd < 0)
                 return log_netdev_error_errno(netdev, -errno,  "Failed to open tun dev: %m");
 
-        r = ioctl(fd, TUNSETIFF, ifr);
-        if (r < 0)
+        if (ioctl(fd, TUNSETIFF, ifr) < 0)
                 return log_netdev_error_errno(netdev, -errno, "TUNSETIFF failed on tun dev: %m");
 
         if (netdev->kind == NETDEV_KIND_TAP)
@@ -83,8 +82,7 @@ static int netdev_tuntap_add(NetDev *netdev, struct ifreq *ifr) {
                 if (r < 0)
                         return log_netdev_error_errno(netdev, r, "Cannot resolve user name %s: %m", t->user_name);
 
-                r = ioctl(fd, TUNSETOWNER, uid);
-                if (r < 0)
+                if (ioctl(fd, TUNSETOWNER, uid) < 0)
                         return log_netdev_error_errno(netdev, -errno, "TUNSETOWNER failed on tun dev: %m");
         }
 
@@ -96,14 +94,12 @@ static int netdev_tuntap_add(NetDev *netdev, struct ifreq *ifr) {
                 if (r < 0)
                         return log_netdev_error_errno(netdev, r, "Cannot resolve group name %s: %m", t->group_name);
 
-                r = ioctl(fd, TUNSETGROUP, gid);
-                if (r < 0)
+                if (ioctl(fd, TUNSETGROUP, gid) < 0)
                         return log_netdev_error_errno(netdev, -errno, "TUNSETGROUP failed on tun dev: %m");
 
         }
 
-        r = ioctl(fd, TUNSETPERSIST, 1);
-        if (r < 0)
+        if (ioctl(fd, TUNSETPERSIST, 1) < 0)
                 return log_netdev_error_errno(netdev, -errno, "TUNSETPERSIST failed on tun dev: %m");
 
         return 0;