[PATCH 5.9 008/105] bpftool: Fix error return value in build_btf_type_table

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From: Zhen Lei <thunder.leizhen@xxxxxxxxxx>

[ Upstream commit 68878a5c5b852d17f5827ce8a0f6fbd8b4cdfada ]

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@xxxxxxxxxx>
Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Signed-off-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
Acked-by: Yonghong Song <yhs@xxxxxx>
Link: https://lore.kernel.org/bpf/20201124104100.491-1-thunder.leizhen@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 tools/bpf/bpftool/btf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c
index 8ab142ff5eac5..2afb7d5b1aca2 100644
--- 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;
 		}
 
-- 
2.27.0






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