bpf: simplify code in btf_parse_hdr

It could directly return 'btf_check_sec_info' to simplify code.

Signed-off-by: William Dean <williamsukatube@163.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20220917084248.3649-1-williamsukatube@163.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index b3940c605aac6b8cf9bcdab9076879b48f4c6790..6ccd4f4d731e7a7273143a66a9edfc4b97691910 100644 (file)
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -4854,7 +4854,6 @@ static int btf_parse_hdr(struct btf_verifier_env *env)
        u32 hdr_len, hdr_copy, btf_data_size;
        const struct btf_header *hdr;
        struct btf *btf;
-       int err;
 
        btf = env->btf;
        btf_data_size = btf->data_size;
@@ -4911,11 +4910,7 @@ static int btf_parse_hdr(struct btf_verifier_env *env)
                return -EINVAL;
        }
 
-       err = btf_check_sec_info(env, btf_data_size);
-       if (err)
-               return err;
-
-       return 0;
+       return btf_check_sec_info(env, btf_data_size);
 }
 
 static int btf_check_type_tags(struct btf_verifier_env *env,