[PATCH v1] clk:clk-imx8-acm:fix wrong pointer check in clk_imx_acm_attach_pm_domains()

[Stephen Boyd]

Quoting Yuesong Li (2024-08-19 19:59:02)
> device_link_add() returns NULL pointer not PTR_ERR() when it fails,so
> replace the IS_ERR() check with NULL pointer check.

Can you document that fact by adding a "Return:" line to the kernel-doc
for device_link_add() in another patch?