hnbgw: remove close_cb() to fix a crash when releasing a hnbgw

The read callback should catch all errors already.
Previous when a read fails it:

* hnb_context_release() -> osmo_stream_srv_destroy() -> hnb_context_release()
On the second hnb_context_release() the hnbgw will crash because calling
llist_del() twice on the same object.

Fixes: OS#3416
Change-Id: Ic84b2184b7fc850c0de2acacf179e86771e17510

1 files changed, 2 insertions, 2 deletions

diff --git a/src/hnbgw_hnbap.c b/src/hnbgw_hnbap.c
index acc5aff..2a19dda 100644
--- a/src/hnbgw_hnbap.c
+++ b/src/hnbgw_hnbap.c
@@ -84,7 +84,7 @@ static int hnbgw_tx_hnb_register_rej(struct hnb_context *ctx)
 		osmo_stream_srv_set_flush_and_destroy(ctx->conn);
 	} else {
 		/* The message was not queued. Destroy the connection right away. */
-		hnb_context_release(ctx, true);
+		hnb_context_release(ctx);
 	}
 }
 
@@ -401,7 +401,7 @@ static int hnbgw_rx_hnb_deregister(struct hnb_context *ctx, ANY_t *in)
 		hnbap_cause_str(&ies.cause));
 
 	hnbap_free_hnbde_registeries(&ies);
-	hnb_context_release(ctx, true);
+	hnb_context_release(ctx);
 
 	return 0;
 }