V701 realloc() possible leak: when realloc() fails in allocating memory,
     original pointer 'm_p' is lost. Consider assigning realloc() to a
     temporary pointer.

Change-Id: Ic298927a266da4d543f3856a1c9f97ba1f6fe941
Reviewed-on: https://gerrit.libreoffice.org/62092Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Mike Kaganski <mike.kaganski@collabora.com>