linux-kernel - [PATCH] tracing: Remove redundant variable ret

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 28 May 2021 02:14:49 +0900
From:   Hyeonggon Yoo <42.hyeyoo@...il.com>
To:     Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] tracing: Remove redundant variable ret

This variable saves return value of event_hist_trigger_func,
but it's never read. So it's redundant.

Signed-off-by: Hyeonggon Yoo <42.hyeyoo@...il.com>
---
 kernel/trace/trace_events_hist.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index c1abd63f1d6c..414f2727d7a7 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -5225,12 +5225,11 @@ static void unregister_field_var_hists(struct hist_trigger_data *hist_data)
 	struct trace_event_file *file;
 	unsigned int i;
 	char *cmd;
-	int ret;
 
 	for (i = 0; i < hist_data->n_field_var_hists; i++) {
 		file = hist_data->field_var_hists[i]->hist_data->event_file;
 		cmd = hist_data->field_var_hists[i]->cmd;
-		ret = event_hist_trigger_func(&trigger_hist_cmd, file,
+		event_hist_trigger_func(&trigger_hist_cmd, file,
 					      "!hist", "hist", cmd);
 	}
 }
-- 
2.25.1