[PATCH] perf bpf: Fix lock/unlock imbalance in perf_env__find_btf() info

[Gustavo A. R. Silva]

Fix lock/unlock imbalance by moving the call to up_read() just after
the *out* label.

Addresses-Coverity-ID: 1444762 ("Missing unlock")
Fixes: 2db7b1e0bd49 ("perf bpf: Return NULL when RB tree lookup fails in 
perf_env__find_btf()")
Signed-off-by: Gustavo A. R. Silva <gust...@embeddedor.com>
---
 tools/perf/util/env.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 9494f9dc61ec..6a3eaf7d9353 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -115,8 +115,8 @@ struct btf_node *perf_env__find_btf(struct perf_env *env, 
__u32 btf_id)
        }
        node = NULL;
 
-       up_read(&env->bpf_progs.lock);
 out:
+       up_read(&env->bpf_progs.lock);
        return node;
 }
 
-- 
2.21.0