ipacces: Fix e1inp_line reference put in ipaccess_close
Drop the function e1inp_close_socket since it's only used by the caller
at hand, and it's only exported through "internal.h", so no app is using
it. Remove it because there's only a caller, and furthermore because
keeping it (and putting bfd->data==line) would introduce a layer
violation because the bfd->data==line is only used for ipaccess so far.
Triggering path:
handle_ts1_read ret=0 "Sign link vanished"
ipaccess_drop
line->ops->sign_link_down
(osmo-bsc) ipaccess_drop_oml
e1inp_sign_link_destroy
link->ts->line->driver->close
ipaccess_close
Related: OS#4624
Change-Id: If23cc722106a9f70c998e591369a4acafa52c519
diff --git a/include/internal.h b/include/internal.h
index c931d4f..8a5aa2e 100644
--- a/include/internal.h
+++ b/include/internal.h
@@ -20,13 +20,7 @@
struct msgb;
struct msgb *ipa_msg_alloc(int headroom);
-/*
- * helper for internal drivers, not public
- */
-void e1inp_close_socket(struct e1inp_ts *ts,
- struct e1inp_sign_link *sign_link,
- struct osmo_fd *bfd);
-
+int e1inp_int_snd_event(struct e1inp_ts *ts, struct e1inp_sign_link *link, int evt);
#endif