diff options
| author | Jiri Olsa <[email protected]> | 2019-04-16 15:41:51 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2019-04-17 14:30:06 -0300 |
| commit | aa52660231410b13d237299e691c43e346e3a73f (patch) | |
| tree | 8f76e4fc1483fc921d2661fb56ede8a99721700c | |
| parent | 30e4c574969ccb624940f1f2f7886596f8fc60ad (diff) | |
perf bpf: Return NULL when RB tree lookup fails in perf_env__find_bpf_prog_info()
We currently don't return NULL in case we don't find the
bpf_prog_info_node, fixing that.
Signed-off-by: Jiri Olsa <[email protected]>
Acked-by: Song Liu <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Fixes: e4378f0cb90b ("perf bpf: Save bpf_prog_info in a rbtree in perf_env")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
| -rw-r--r-- | tools/perf/util/env.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index c6351b557bb0..34a363f2e71b 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -57,9 +57,11 @@ struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env, else if (prog_id > node->info_linear->info.id) n = n->rb_right; else - break; + goto out; } + node = NULL; +out: up_read(&env->bpf_progs.lock); return node; } |