Don't attempt to access memory if the patch context can't be mapped, but print an error message instead. Change-Id: I2d0ec22378ace0ef826f5a84a9ce4d35466f7832 Signed-off-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-on: http://git-master/r/1157281 GVS: Gerrit_Virtual_Submit Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>