mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-06 00:39:48 +00:00
tracing/kprobe: Release kprobe print_fmt properly
We don't release tk->tp.call.print_fmt when destroying
local uprobe. Also there's missing print_fmt kfree in
create_local_trace_kprobe error path.
Link: http://lkml.kernel.org/r/20180709141906.2390-1-jolsa@kernel.org
Cc: stable@vger.kernel.org
Fixes: e12f03d703
("perf/core: Implement the 'perf_kprobe' PMU")
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
parent
1fe4293f4b
commit
0fc8c3581d
1 changed files with 5 additions and 1 deletions
|
@ -1480,8 +1480,10 @@ create_local_trace_kprobe(char *func, void *addr, unsigned long offs,
|
|||
}
|
||||
|
||||
ret = __register_trace_kprobe(tk);
|
||||
if (ret < 0)
|
||||
if (ret < 0) {
|
||||
kfree(tk->tp.call.print_fmt);
|
||||
goto error;
|
||||
}
|
||||
|
||||
return &tk->tp.call;
|
||||
error:
|
||||
|
@ -1501,6 +1503,8 @@ void destroy_local_trace_kprobe(struct trace_event_call *event_call)
|
|||
}
|
||||
|
||||
__unregister_trace_kprobe(tk);
|
||||
|
||||
kfree(tk->tp.call.print_fmt);
|
||||
free_trace_kprobe(tk);
|
||||
}
|
||||
#endif /* CONFIG_PERF_EVENTS */
|
||||
|
|
Loading…
Reference in a new issue