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aeded601d6
kvm_io_bus_register_dev() and kvm_io_bus_unregister_dev() should be called under kvm->slots_lock. The unregister calls in ipi.c, eiointc.c and pch_pic.c were also missing this protection. Add it to match the register side. Cc: stable@vger.kernel.org Reviewed-by: Bibo Mao <maobibo@loongson.cn> Signed-off-by: Zeng Chi <zengchi@kylinos.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>