From 748e4f3d702def1a4bff191e0cf93b6a05340f01 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:41:34 +0000
Subject: [PATCH] add gpio led uart
---
kernel/tools/lib/bpf/libbpf.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/kernel/tools/lib/bpf/libbpf.c b/kernel/tools/lib/bpf/libbpf.c
index 66d7f8d..015ed82 100644
--- a/kernel/tools/lib/bpf/libbpf.c
+++ b/kernel/tools/lib/bpf/libbpf.c
@@ -3479,6 +3479,9 @@
int l = 0, r = obj->nr_programs - 1, m;
struct bpf_program *prog;
+ if (!obj->nr_programs)
+ return NULL;
+
while (l < r) {
m = l + (r - l + 1) / 2;
prog = &obj->programs[m];
--
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