free xml later in the code to avoid freeing used memory

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5667 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/sofia_reg.c

@@ -839,8 +839,6 @@ auth_res_t sofia_reg_parse_auth(sofia_profile_t *profile, sip_authorization_t co
 		}
 	}
 
-	switch_xml_free(xml);
-
 	if (switch_strlen_zero(passwd) && switch_strlen_zero(a1_hash)) {
 		ret = AUTH_OK;
 		goto end;
@@ -894,6 +892,7 @@ auth_res_t sofia_reg_parse_auth(sofia_profile_t *profile, sip_authorization_t co
 	}
 
   end:
+	switch_xml_free(xml);
 	switch_safe_free(input);
 	switch_safe_free(input2);
 	switch_safe_free(username);