[PATCH] wifi: mt76: mt7996: Add NULL check in mt7996_thermal_init

[Markus Elfring]

> When devm_kasprintf() fails, it returns a NULL pointer. However, this return value is not properly checked in the function mt7996_thermal_init.
>
> A NULL check should be added after the devm_kasprintf() to prevent potential NULL pointer dereference error.

* Please adhere to word wrapping preferences around 75 characters per text line.

* How do you think about to choose the imperative mood for an improved change description?
  https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.14#n94

Regards,
Markus