linux-kernel - [PATCH bpf-next v3 03/17] libbpf: fix return value on memory allocation failure

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Message-ID: <20260127024421.494929-4-roman.gushchin@linux.dev>
Date: Mon, 26 Jan 2026 18:44:06 -0800
From: Roman Gushchin <roman.gushchin@...ux.dev>
To: bpf@...r.kernel.org
Cc: Michal Hocko <mhocko@...e.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Matt Bobrowski <mattbobrowski@...gle.com>,
	Shakeel Butt <shakeel.butt@...ux.dev>,
	JP Kobryn <inwardvessel@...il.com>,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	Suren Baghdasaryan <surenb@...gle.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Roman Gushchin <roman.gushchin@...ux.dev>
Subject: [PATCH bpf-next v3 03/17] libbpf: fix return value on memory allocation failure

bpf_map__attach_struct_ops() returns -EINVAL instead of -ENOMEM
on the memory allocation failure. Fix it.

Fixes: 590a00888250 ("bpf: libbpf: Add STRUCT_OPS support")
Signed-off-by: Roman Gushchin <roman.gushchin@...ux.dev>
---
 tools/lib/bpf/libbpf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 0c8bf0b5cce4..46d2762f5993 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -13480,7 +13480,7 @@ struct bpf_link *bpf_map__attach_struct_ops(const struct bpf_map *map)
 
 	link = calloc(1, sizeof(*link));
 	if (!link)
-		return libbpf_err_ptr(-EINVAL);
+		return libbpf_err_ptr(-ENOMEM);
 
 	/* kern_vdata should be prepared during the loading phase. */
 	err = bpf_map_update_elem(map->fd, &zero, map->st_ops->kern_vdata, 0);
-- 
2.52.0