tracing/hist: Fix wrong return value in parse_action_params()
When number of synth fields is more than SYNTH_FIELDS_MAX, parse_action_params() should return -EINVAL. Link: https://lore.kernel.org/linux-trace-kernel/20221207034635.2253990-1-zhengyejian1@huawei.com Cc: <mhiramat@kernel.org> Cc: <zanussi@kernel.org> Cc: stable@vger.kernel.org Fixes: c282a386 ("tracing: Add 'onmatch' hist trigger action support") Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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