main: newer kernels return EINVAL if we invoke reboot() in a container lacking perms...

diff --git a/src/core/manager.c b/src/core/manager.c
index b0357b71fdead5df4634f06e31cab4b79ca6e236..cf069171997c4af3138c0ae839e099e3e0f269e8 100644 (file)
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -138,8 +138,9 @@ static int enable_special_signals(Manager *m) {
         assert(m);
 
         /* Enable that we get SIGINT on control-alt-del. In containers
-         * this will fail with EPERM, so ignore that. */
-        if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM)
+         * this will fail with EPERM (older) or EINVAL (newer), so
+         * ignore that. */
+        if (reboot(RB_DISABLE_CAD) < 0 && errno != EPERM && errno != EINVAL)
                 log_warning("Failed to enable ctrl-alt-del handling: %m");
 
         fd = open_terminal("/dev/tty0", O_RDWR|O_NOCTTY|O_CLOEXEC);