[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20230714192143.3656-1-mkhalfella@purestorage.com>
Date: Fri, 14 Jul 2023 19:21:43 +0000
From: Mohamed Khalfella <mkhalfella@...estorage.com>
To: mkhalfella@...estorage.com
Cc: stable@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
Masami Hiramatsu <mhiramat@...nel.org>,
linux-kernel@...r.kernel.org (open list:TRACING),
linux-trace-kernel@...r.kernel.org (open list:TRACING)
Subject: [PATCH] tracing/histograms: Return an error if we fail to add histogram to hist_vars list
If the code fails to add histogram to hist_vars list, then ret should
contain error code before jumping to unregister histogram.
Cc: stable@...r.kernel.org
Fixes: 6018b585e8c6 ("tracing/histograms: Add histograms to hist_vars if they have referenced variables")
Signed-off-by: Mohamed Khalfella <mkhalfella@...estorage.com>
---
kernel/trace/trace_events_hist.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index c8c61381eba4..d06938ae0717 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -6668,7 +6668,8 @@ static int event_hist_trigger_parse(struct event_command *cmd_ops,
goto out_unreg;
if (has_hist_vars(hist_data) || hist_data->n_var_refs) {
- if (save_hist_vars(hist_data))
+ ret = save_hist_vars(hist_data);
+ if (ret)
goto out_unreg;
}
--
2.34.1
Powered by blists - more mailing lists