From cb0ba2f8253bc4ed3b301928c4a84d6ca1e7593b Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Mon, 7 Dec 2020 13:48:35 +0000 Subject: [PATCH] [interface] Ignore any attempts to plug in the null interface Allow intf_plug() and intf_plug_plug() to be called safely on interfaces that may be the null interface. Signed-off-by: Michael Brown --- src/core/interface.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/core/interface.c b/src/core/interface.c index 402aa4541..05e7e4777 100644 --- a/src/core/interface.c +++ b/src/core/interface.c @@ -81,9 +81,14 @@ struct interface null_intf = INTF_INIT ( null_intf_desc ); * interface is updated to point to the new destination interface. */ void intf_plug ( struct interface *intf, struct interface *dest ) { + + if ( intf == &null_intf ) + return; + DBGC ( INTF_COL ( intf ), "INTF " INTF_INTF_FMT " replug to " INTF_FMT "\n", INTF_INTF_DBG ( intf, intf->dest ), INTF_DBG ( dest ) ); + intf_get ( dest ); intf_put ( intf->dest ); intf->dest = dest; -- 2.47.2