In late 70s, after coming to power by coup, he rehabilitated the former party secretaries of Henan, Anhui, Sichuan, Shandong during the Great Leap Forward, who bear direct responsibility for it. This is well documented and 100% objective. See the links below for detailed evidence.

https://gmachine1729.livejournal.com/172350.html

https://gmachine1729.livejournal.com/172902.html