Freeing gerrors

["Juan A. Suarez Romero" <jasuarez igalia com>]

Hi.


In most Grilo's callbacks, there is a GError parameter set when there is
an error.

Who should free that error? Client in the callback or caller after
executing the callback?

For what I know, standard way is that client must free the error in the
callback. But I would like to be sure before digging the code and making
sure it is always done in that way.

	J.A.