linux-kernel - [PATCH 5.16 0170/1039] tools/resolve_btf

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Message-Id: <20220124184130.945056389@linuxfoundation.org>
Date:   Mon, 24 Jan 2022 19:32:39 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Andrii Nakryiko <andrii@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 0170/1039] tools/resolve_btf_ids: Close ELF file on error

From: Andrii Nakryiko <andrii@...nel.org>

[ Upstream commit 1144ab9bdf3430e1b5b3f22741e5283841951add ]

Fix one case where we don't do explicit clean up.

Fixes: fbbb68de80a4 ("bpf: Add resolve_btfids tool to resolve BTF IDs in ELF object")
Signed-off-by: Andrii Nakryiko <andrii@...nel.org>
Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
Link: https://lore.kernel.org/bpf/20211124002325.1737739-2-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/bpf/resolve_btfids/main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/bpf/resolve_btfids/main.c b/tools/bpf/resolve_btfids/main.c
index 73409e27be01f..5d26f3c6f918e 100644
--- a/tools/bpf/resolve_btfids/main.c
+++ b/tools/bpf/resolve_btfids/main.c
@@ -168,7 +168,7 @@ static struct btf_id *btf_id__find(struct rb_root *root, const char *name)
 	return NULL;
 }
 
-static struct btf_id*
+static struct btf_id *
 btf_id__add(struct rb_root *root, char *name, bool unique)
 {
 	struct rb_node **p = &root->rb_node;
@@ -732,7 +732,8 @@ int main(int argc, const char **argv)
 	if (obj.efile.idlist_shndx == -1 ||
 	    obj.efile.symbols_shndx == -1) {
 		pr_debug("Cannot find .BTF_ids or symbols sections, nothing to do\n");
-		return 0;
+		err = 0;
+		goto out;
 	}
 
 	if (symbols_collect(&obj))
-- 
2.34.1