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bpftool: Fix error return value in build_btf_type_table
author
Zhen Lei
<thunder.leizhen@huawei.com>
Tue, 24 Nov 2020 10:41:00 +0000
(18:41 +0800)
committer
Daniel Borkmann
<daniel@iogearbox.net>
Tue, 24 Nov 2020 22:19:18 +0000
(23:19 +0100)
An appropriate return value should be set on the failed path.
Fixes:
4d374ba0bf30
("tools: bpftool: implement "bpftool btf show|list"")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link:
https://lore.kernel.org/bpf/20201124104100.491-1-thunder.leizhen@huawei.com
tools/bpf/bpftool/btf.c
patch
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diff --git
a/tools/bpf/bpftool/btf.c
b/tools/bpf/bpftool/btf.c
index
8ab142f
..
2afb7d5
100644
(file)
--- a/
tools/bpf/bpftool/btf.c
+++ b/
tools/bpf/bpftool/btf.c
@@
-693,6
+693,7
@@
build_btf_type_table(struct btf_attach_table *tab, enum bpf_obj_type type,
obj_node = calloc(1, sizeof(*obj_node));
if (!obj_node) {
p_err("failed to allocate memory: %s", strerror(errno));
+ err = -ENOMEM;
goto err_free;
}