Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752859AbaAQPCS (ORCPT ); Fri, 17 Jan 2014 10:02:18 -0500 Received: from merlin.infradead.org ([205.233.59.134]:36279 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752284AbaAQO5h (ORCPT ); Fri, 17 Jan 2014 09:57:37 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Namhyung Kim , Frederic Weisbecker , Jiri Olsa , Namhyung Kim , Peter Zijlstra , Steven Rostedt , Arnaldo Carvalho de Melo Subject: [PATCH 12/19] tools lib traceevent: Unregister handler when xen plugin is unloaded Date: Fri, 17 Jan 2014 11:57:18 -0300 Message-Id: <1389970645-12075-13-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1389970645-12075-1-git-send-email-acme@infradead.org> References: <1389970645-12075-1-git-send-email-acme@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by merlin.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Namhyung Kim The function handler should be unregistered when the plugin is unloaded otherwise it'll try to access invalid memory. Signed-off-by: Namhyung Kim Reviewed-by: Jiri Olsa Acked-by: Steven Rostedt Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1389839478-5887-13-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/plugin_xen.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/lib/traceevent/plugin_xen.c b/tools/lib/traceevent/plugin_xen.c index e7794298f3a9..3a413eaada68 100644 --- a/tools/lib/traceevent/plugin_xen.c +++ b/tools/lib/traceevent/plugin_xen.c @@ -128,3 +128,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent) PEVENT_FUNC_ARG_VOID); return 0; } + +void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) +{ + pevent_unregister_print_function(pevent, process_xen_hypercall_name, + "xen_hypercall_name"); +} -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/