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bpf: clean up put_cpu_var usage 

put_cpu_var takes the percpu data, not the data returned from
get_cpu_var.

This doesn't change the behavior.

Cc: Tejun Heo <tj@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shaohua Li 2016-09-27 08:42:41 -07:00 committed by David S. Miller
parent e96e0eded1
commit b761fe226b
1 changed files with 1 additions and 1 deletions
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2
kernel/bpf/core.c
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@ -1031,7 +1031,7 @@ BPF_CALL_0(bpf_user_rnd_u32)
state = &get_cpu_var(bpf_user_rnd_state);
res = prandom_u32_state(state);
put_cpu_var(state);
put_cpu_var(bpf_user_rnd_state);
return res;
}