On 18/05/2022 04:44, Jiabing Wan wrote: > Hi, > > On 2022/5/17 23:13, Krzysztof Kozlowski wrote: >> On 16/05/2022 10:41, Wan Jiabing wrote: >>> clk_disable_unprepare() already checks ERROR by using IS_ERR_OR_NULL. >> Hmm, maybe I am looking at different sources, but which commit >> introduced IS_ERR_OR_NULL() check? Where is it in the sources? >> > In commit 4dff95dc9477a, IS_ERR_OR_NULL check is added in clk_disable() > and clk_unprepare(). > And clk_disable_unprepare() just calls clk_disable() and clk_unprepare(): Thank you, indeed, I was mislead a bit by clk_prepare() which is not symmetric. Best regards, Krzysztof
