'tun' support might be compiled into the kernel, thus modprobe will
always fail.

https://mail.gnome.org/archives/networkmanager-list/2014-July/msg00014.html

Signed-off-by: Thomas Haller <[email protected]>
---
 src/nm-openvpn-service.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/nm-openvpn-service.c b/src/nm-openvpn-service.c
index 84968e8..b45eb28 100644
--- a/src/nm-openvpn-service.c
+++ b/src/nm-openvpn-service.c
@@ -1623,7 +1623,8 @@ main (int argc, char *argv[])
        if (debug)
                g_message ("nm-openvpn-service (version " DIST_VERSION ") 
starting...");
 
-       if (system ("/sbin/modprobe tun") == -1)
+       if (   !g_file_test ("/sys/class/misc/tun", G_FILE_TEST_EXISTS)
+           && (system ("/sbin/modprobe tun") == -1))
                exit (EXIT_FAILURE);
 
        plugin = nm_openvpn_plugin_new ();
-- 
1.9.3

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