[gnome-disk-utility] Fix a crasher when determining unallocated on unactivated drives

[David Zeuthen <davidz src gnome org>]

commit 2766b195353af7f3b74f706572987ceb7d97d028
Author: David Zeuthen <davidz redhat com>
Date:   Sat Aug 8 15:46:06 2009 -0400

    Fix a crasher when determining unallocated on unactivated drives

 src/gdu/gdu-drive.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/gdu/gdu-drive.c b/src/gdu/gdu-drive.c
index 0852ac2..46fb0ba 100644
--- a/src/gdu/gdu-drive.c
+++ b/src/gdu/gdu-drive.c
@@ -264,8 +264,10 @@ gdu_drive_has_unallocated_space_real (GduDrive        *drive,
         pres = NULL;
 
         device = gdu_presentable_get_device (GDU_PRESENTABLE (drive));
+        if (device == NULL)
+                goto out;
 
-        if (device != NULL && gdu_device_is_read_only (device))
+        if (gdu_device_is_read_only (device))
                 goto out;
 
         if (gdu_device_is_removable (device) && !gdu_device_is_media_available (device))