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bpf: Fix early return in map_check_btf

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Instead of returning directly with -EOPNOTSUPP for the timer case, we
need to free the btf_record before returning to userspace.

Fixes: db55911782 ("bpf: Consolidate spin_lock, timer management into btf_record")
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20221118015614.2013203-2-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Kumar Kartikeya Dwivedi 2022-11-18 07:25:51 +05:30 committed by Alexei Starovoitov
parent 98b2afc8a6
commit c237bfa528
1 changed files with 1 additions and 1 deletions
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2
kernel/bpf/syscall.c
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@ -1010,7 +1010,7 @@ static int map_check_btf(struct bpf_map *map, const struct btf *btf,
if (map->map_type != BPF_MAP_TYPE_HASH &&
map->map_type != BPF_MAP_TYPE_LRU_HASH &&
map->map_type != BPF_MAP_TYPE_ARRAY) {
return -EOPNOTSUPP;
ret = -EOPNOTSUPP;
goto free_map_tab;
}
break;