diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2018-07-09 16:19:06 +0200 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2018-07-11 15:50:52 -0400 |
| commit | 0fc8c3581dd42bc8f530314ca86db2d861485731 (patch) | |
| tree | d89e7933d9e1dea25373f87fbcfc3339415ec9a1 | |
| parent | 1fe4293f4b8de75824935f8d8e9a99c7fc6873da (diff) | |
| download | linux-lora-0fc8c3581dd42bc8f530314ca86db2d861485731.tar.gz | |
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: e12f03d7031a ("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>
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index daa81571b22a4..21f7184729422 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -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 */ |