git: installer - Fix a segfault

[Antonio Huete Jimenez]

commit 83c251b046d8f9b452dadd712f6818e77d542d74
Author: Antonio Huete Jimenez <tuxillo at quantumachine.net>
Date:   Fri Dec 5 10:35:24 2014 +0100

    installer - Fix a segfault
    
    - If survey was unable to detect any partition on the selected disk,
      as it is the case for unconfigured vn devices, do not attempt to
      dereference the selected_slice pointer.

Summary of changes:
 usr.sbin/installer/dfuibe_installer/fn_disk.c | 7 +++++++
 1 file changed, 7 insertions(+)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/83c251b046d8f9b452dadd712f6818e77d542d74


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