BugLink: http://bugs.launchpad.net/bugs/1520436

"omap" is NULL so we can't dereference it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
(cherry picked from commit 07472640)
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>