From b626a4677a0ba8e8e167cde24b9684cf920b9c56 Mon Sep 17 00:00:00 2001
From: Ondrej Holy <oholy@redhat.com>
Date: Mon, 24 Oct 2016 20:13:22 +0200
Subject: [PATCH] gunixmounts: Fix crash if path doesn't exist

g_unix_mount_for segfaults for nonexistent paths. Return NULL if path
doesn't exist.

https://bugzilla.gnome.org/show_bug.cgi?id=772160
---
 gio/gunixmounts.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/gio/gunixmounts.c b/gio/gunixmounts.c
index 52be25a34..d08a4e282 100644
--- a/gio/gunixmounts.c
+++ b/gio/gunixmounts.c
@@ -1471,8 +1471,11 @@ g_unix_mount_for (const char *file_path,
       char *topdir;
 
       topdir = _g_local_file_find_topdir_for (file_path);
-      entry = g_unix_mount_at (topdir, time_read);
-      g_free (topdir);
+      if (topdir != NULL)
+        {
+          entry = g_unix_mount_at (topdir, time_read);
+          g_free (topdir);
+        }
     }
 
   return entry;