From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 13 Apr 2012 15:54:33 +0000 (+0200)
Subject: logind: explicitly check for /dev/tty0
X-Git-Tag: v183~322
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74afee9c18fe74035387e4e17ca60c6b51ee9af3;p=systemd

logind: explicitly check for /dev/tty0
---

diff --git a/src/login/logind.c b/src/login/logind.c
index 67117405..fc08c4bc 100644
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -945,14 +945,16 @@ static int manager_connect_console(Manager *m) {
         assert(m);
         assert(m->console_active_fd < 0);
 
+        /* On certain architectures (S390 and Xen, and containers),
+           /dev/tty0 does not exist, so don't fail if we can't open
+           it. */
+        if (access("/dev/tty0", F_OK) < 0) {
+                m->console_active_fd = -1;
+                return 0;
+        }
+
         m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC);
         if (m->console_active_fd < 0) {
-
-                /* On certain architectures (S390 and Xen), /dev/tty0
-                   does not exist, so don't fail if we can't open it.*/
-                if (errno == ENOENT)
-                        return 0;
-
                 log_error("Failed to open /sys/class/tty/tty0/active: %m");
                 return -errno;
         }