Database connections across services

Was looking at the SessionService database implementation and noticed the database connection is opened by the service. It looks like this prevents me from opening a single database client and passing it to all the services (others still lack implementations)

func NewSessionService(dialector gorm.Dialector, opts ...gorm.Option) (session.Service, error) {
	db, err := gorm.Open(dialector, opts...)
	if err != nil {
		return nil, fmt.Errorf("error creating database session service: %w", err)
	}
	return &databaseService{db: db}, nil
}

so I changed it to look like this

func NewSessionService(db *gorm.DB) (session.Service, error) {
	return &databaseService{db: db}, nil
}

Another benefit to this is that my application can also use the same database connection for any extra tables it needs.

Thoughts on the change and the issue more generally?