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bpf: Change kvfree to kfree in generic_map_lookup_batch() 

buf_prevkey in generic_map_lookup_batch() is allocated with
kmalloc(). It's safe to free it with kfree().

Fixes: cb4d03ab49 ("bpf: Add generic support for lookup batch op")
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200601162814.17426-1-efremov@linux.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Denis Efremov 2020-06-01 19:28:14 +03:00 committed by Alexei Starovoitov
parent 7b805819c4
commit bb2359f4db
1 changed files with 1 additions and 1 deletions
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2
kernel/bpf/syscall.c
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@ -1399,7 +1399,7 @@ int generic_map_lookup_batch(struct bpf_map *map,
buf = kmalloc(map->key_size + value_size, GFP_USER | __GFP_NOWARN);
if (!buf) {
kvfree(buf_prevkey);
kfree(buf_prevkey);
return -ENOMEM;
}