This patch plugs two memory leaks in the sg driver. The
first was reported by Vegard Nossum and the second was
found by checking for the same pattern.

ChangeLog:
    - close two heap memory leaks. The first is an error
      path; the second is associated with getting debug
      information from procfs and sysfs.

The patch is generated from lk 3.12.0-rc2 .


Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>