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-rw-r--r--tools/lib/traceevent/event-parse.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index cdb32c78d150..4d5092f67167 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -4960,13 +4960,20 @@ static void free_event(struct event_format *event)
*/
void pevent_free(struct pevent *pevent)
{
- struct cmdline_list *cmdlist = pevent->cmdlist, *cmdnext;
- struct func_list *funclist = pevent->funclist, *funcnext;
- struct printk_list *printklist = pevent->printklist, *printknext;
+ struct cmdline_list *cmdlist, *cmdnext;
+ struct func_list *funclist, *funcnext;
+ struct printk_list *printklist, *printknext;
struct pevent_function_handler *func_handler;
struct event_handler *handle;
int i;
+ if (!pevent)
+ return;
+
+ cmdlist = pevent->cmdlist;
+ funclist = pevent->funclist;
+ printklist = pevent->printklist;
+
pevent->ref_count--;
if (pevent->ref_count)
return;