From: Mauricio Vásquez mauricio@kinvolk.io
[ Upstream commit 1000298c76830bc291358e98e8fa5baa3baa9b3a ]
Free btf_dedup if btf_ensure_modifiable() returns error.
Fixes: 919d2b1dbb07 ("libbpf: Allow modification of BTF and add btf__add_str API") Signed-off-by: Mauricio Vásquez mauricio@kinvolk.io Signed-off-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/bpf/20211022202035.48868-1-mauricio@kinvolk.io Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/bpf/btf.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c index 7ff3d5ce44f99..99d28f04b59d4 100644 --- a/tools/lib/bpf/btf.c +++ b/tools/lib/bpf/btf.c @@ -2899,8 +2899,10 @@ int btf__dedup(struct btf *btf, struct btf_ext *btf_ext, return libbpf_err(-EINVAL); }
- if (btf_ensure_modifiable(btf)) - return libbpf_err(-ENOMEM); + if (btf_ensure_modifiable(btf)) { + err = -ENOMEM; + goto done; + }
err = btf_dedup_prep(d); if (err) {