From 8db403b9631331ef1d5e302cdf353c48849ca9d5 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Sun, 11 Apr 2021 12:21:54 +0200
Subject: [PATCH] tracing/dynevent: Fix a memory leak in an error handling path
We must free 'argv' before returning, as already done in all the other
paths of this function.
Link: https://lkml.kernel.org/r/21e3594ccd7fc88c5c162c98450409190f304327.1618136448.git.christophe.jaillet@wanadoo.fr
Fixes: d262271d0483 ("tracing/dynevent: Delegate parsing to create function")
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
kernel/trace/trace_dynevent.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/trace_dynevent.c b/kernel/trace/trace_dynevent.c
index dc971a68dda4e..e57cc0870892c 100644
--- a/kernel/trace/trace_dynevent.c
+++ b/kernel/trace/trace_dynevent.c
@@ -63,8 +63,10 @@ int dyn_event_release(const char *raw_command, struct dyn_event_operations *type
event = p + 1;
*p = '\0';
}
- if (event[0] == '\0')
- return -EINVAL;
+ if (event[0] == '\0') {
+ ret = -EINVAL;
+ goto out;
+ }
mutex_lock(&event_mutex);
for_each_dyn_event_safe(pos, n) {
--
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