From: Andrii Nakryiko andriin@fb.com
[ Upstream commit 3521ffa2ee9a48c3236c93f54ae11c074490ebce ]
BTF object wasn't freed.
Fixes: a6ed02cac690 ("libbpf: Load btf_vmlinux only once per object.") Signed-off-by: Andrii Nakryiko andriin@fb.com Signed-off-by: Alexei Starovoitov ast@kernel.org Cc: KP Singh kpsingh@google.com Link: https://lore.kernel.org/bpf/20200429012111.277390-9-andriin@fb.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/bpf/libbpf.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 63fc872723fc..cd53204d33f0 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -6688,6 +6688,7 @@ int libbpf_find_vmlinux_btf_id(const char *name, enum bpf_attach_type attach_type) { struct btf *btf; + int err;
btf = libbpf_find_kernel_btf(); if (IS_ERR(btf)) { @@ -6695,7 +6696,9 @@ int libbpf_find_vmlinux_btf_id(const char *name, return -EINVAL; }
- return __find_vmlinux_btf_id(btf, name, attach_type); + err = __find_vmlinux_btf_id(btf, name, attach_type); + btf__free(btf); + return err; }
static int libbpf_find_prog_btf_id(const char *name, __u32 attach_prog_fd)