diff mbox series

[bpf-next,v5,3/3] bpf, btf: Check btf for register_bpf_struct_ops

Message ID 69082b9835463fe36f9e354bddf2d0a97df39c2b.1707373307.git.tanggeliang@kylinos.cn (mailing list archive)
State Accepted
Commit 947e56f82fd783a1ec1c9359b20b5699d09cae14
Delegated to: BPF
Headers show
Series bpf, btf: Add DEBUG_INFO_BTF checks for __register_bpf_struct_ops | expand

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Commit Message

Geliang Tang Feb. 8, 2024, 6:24 a.m. UTC 
From: Geliang Tang <tanggeliang@kylinos.cn>

Similar to the handling in the functions __register_btf_kfunc_id_set()
and register_btf_id_dtor_kfuncs(), this patch uses the newly added
helper check_btf_kconfigs() and IS_ERR() to check the return value of
btf_get_module_btf().

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 kernel/bpf/btf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index e318df7f0071..c18b0f47f1f9 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -8882,7 +8882,9 @@  int __register_bpf_struct_ops(struct bpf_struct_ops *st_ops)
 
 	btf = btf_get_module_btf(st_ops->owner);
 	if (!btf)
-		return -EINVAL;
+		return check_btf_kconfigs(st_ops->owner);
+	if (IS_ERR(btf))
+		return PTR_ERR(btf);
 
 	log = kzalloc(sizeof(*log), GFP_KERNEL | __GFP_NOWARN);
 	if (!log) {