bpf: use the same condition in perf event set/free bpf handler

This is a cleanup such that doing the same check in
perf_event_free_bpf_prog as we already do in
perf_event_set_bpf_prog step.

Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 31ee304..9f78a68 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -8191,10 +8191,10 @@ static void perf_event_free_bpf_prog(struct perf_event *event)
 {
        struct bpf_prog *prog;
 
-       perf_event_free_bpf_handler(event);
-
-       if (!event->tp_event)
+       if (event->attr.type != PERF_TYPE_TRACEPOINT) {
+               perf_event_free_bpf_handler(event);
                return;
+       }
 
        prog = event->tp_event->prog;
        if (prog && event->tp_event->bpf_prog_owner == event) {