pScreenData is replaced when building per visual intensity tables. If
malloc failed the old value of pScreenData (stored also in
pScreenDefaultData) was being leaked. Also, property_return wasn't
free'd in that case.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan-de-oliveira@nokia.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Backported-to-NX-by: Ulrich Sibiller <uli42@gmx.de>