If "core" memory resource is not specified, then the driver could
end up dereferencing a null pointer. Fix this issue.
Signed-off-by: NKiran Gunda <kgunda@codeaurora.org>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>