[PATCH] tracing/dynevent: Fix a memory leak in an error handling path

[Christophe JAILLET]

We must free 'argv' before returning, as already done in all the other
paths of this function.

Fixes: d262271d0483 ("tracing/dynevent: Delegate parsing to create function")
Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
---
 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 dc971a68dda4..e57cc0870892 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) {
-- 
2.27.0