summaryrefslogtreecommitdiff
path: root/tools/lib
diff options
context:
space:
mode:
authorDaniel T. Lee <danieltimlee@gmail.com>2020-08-06 01:33:59 +0300
committerAlexei Starovoitov <ast@kernel.org>2020-08-07 02:47:00 +0300
commit932ac54a3e59335a847f7682b5124a788ab3c798 (patch)
tree6e3d312032e3716fed044334c235458d93d79bab /tools/lib
parent0ac10dc1888cd1a8b994f32b51f0eaeba1e803ef (diff)
downloadlinux-932ac54a3e59335a847f7682b5124a788ab3c798.tar.xz
libbf: Fix uninitialized pointer at btf__parse_raw()
Recently, from commit 94a1fedd63ed ("libbpf: Add btf__parse_raw() and generic btf__parse() APIs"), new API has been added to libbpf that allows to parse BTF from raw data file (btf__parse_raw()). The commit derives build failure of samples/bpf due to improper access of uninitialized pointer at btf_parse_raw(). btf.c: In function btf__parse_raw: btf.c:625:28: error: btf may be used uninitialized in this function 625 | return err ? ERR_PTR(err) : btf; | ~~~~~~~~~~~~~~~~~~~^~~~~ This commit fixes the build failure of samples/bpf by adding code of initializing btf pointer as NULL. Fixes: 94a1fedd63ed ("libbpf: Add btf__parse_raw() and generic btf__parse() APIs") Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200805223359.32109-1-danieltimlee@gmail.com
Diffstat (limited to 'tools/lib')
-rw-r--r--tools/lib/bpf/btf.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c
index 856b09a04563..4843e44916f7 100644
--- a/tools/lib/bpf/btf.c
+++ b/tools/lib/bpf/btf.c
@@ -564,8 +564,8 @@ done:
struct btf *btf__parse_raw(const char *path)
{
+ struct btf *btf = NULL;
void *data = NULL;
- struct btf *btf;
FILE *f = NULL;
__u16 magic;
int err = 0;