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csky/kprobe: reclaim insn_slot on kprobe unregistration
On kprobe registration kernel allocate one insn_slot for new kprobe, but it forget to reclaim the insn_slot on unregistration, leading to a potential leakage. Reported-by: Chen Guokai <chenguokai17@mails.ucas.ac.cn> Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Liao Chang <liaochang1@huawei.com> Signed-off-by: Guo Ren <guoren@kernel.org>
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