非谓语动词作状语时逻辑主语一定是句子的主语吗

After getting up in the morning, he went out for a walk.

老师,分词短语作状语时,它的逻辑主语是句子的主语,这是一定的吗,不是的话,句子一定是病句;那介词加动名词短语作状语是,它的逻辑主语也一定是主句的主语吗,假如不是句子的主语,那句子肯定是错误吗?

分词短语作状语时，它的逻辑主语原则上应是句子的主语。

但若是介词加动名词短语作状语，则其逻辑主语可能不是主句的主语。如：

His legs ached after playing football. 踢完球后他感到腿疼。

Her hips had spread since having a baby. 生小孩后她的臀部变大了。