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From 659773964a8e0b00e24f465b3b3a1fa6ca3bf54a Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Thu, 4 Jul 2013 11:01:47 +0200
Subject: [PATCH] core/mount.c:mount_dump(): don't segfault, if mount is not
 mounted anymore

Don't segfault, if m->from_proc_self_mountinfo and m->from_fragment is
false.

https://bugzilla.redhat.com/show_bug.cgi?id=957783#c9
---
 src/core/mount.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/core/mount.c b/src/core/mount.c
index 605c56d26d..85f500005d 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -820,9 +820,9 @@ static void mount_dump(Unit *u, FILE *f, const char *prefix) {
                 prefix, mount_state_to_string(m->state),
                 prefix, mount_result_to_string(m->result),
                 prefix, m->where,
-                prefix, strna(p->what),
-                prefix, strna(p->fstype),
-                prefix, strna(p->options),
+                prefix, p ? strna(p->what) : "n/a",
+                prefix, p ? strna(p->fstype) : "n/a",
+                prefix, p ? strna(p->options) : "n/a",
                 prefix, yes_no(m->from_proc_self_mountinfo),
                 prefix, yes_no(m->from_fragment),
                 prefix, m->directory_mode);