kernel-netlink: Make sure we successfully opened a Netlink socket

This is in addition to the fix in the destructor in 991e9e5dc9.

diff --git a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
index 3412877ad9b1957f93862de07b975550fc75debf..3e6e64cfd81fe63bdc96569821707d2f8c3a29ed 100644 (file)
--- a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
+++ b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
@@ -3159,6 +3159,12 @@ kernel_netlink_net_t *kernel_netlink_net_create()
 
        check_kernel_features(this);
 
+       if (!this->socket)
+       {
+               destroy(this);
+               return NULL;
+       }
+
        if (streq(lib->ns, "starter"))
        {       /* starter has no threads, so we do not register for kernel events */
                register_for_events = FALSE;