tree 0710dd52a513ffd244f24afa5fa2e027a9288213
parent e38588a0def0e3080532eb724f2c562396933486
author krish-pointone <krish@pointone.com> 1773762888 -0400
committer GitHub <noreply@github.com> 1773762888 -0500
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsFcBAABCAAQBQJpuXlICRC1aQ7uu5UhlAAAghsQAEEbYW3P39vnwfNMAmLRdNpr
 z+/9wJHdmDA+TYSJxi7Us9YtKxmusd2AIHxbJDolHMT3O629YjTeEwKWW7J7SZoS
 bouWj3Wj+dQ41yLsMEbCoyHRE/+fLpFz/XJVoKn0TP7R0z+qVFBY85TD5HJGrePq
 57tOXRjxVQdhcfrey86zQYfrirJRMq1zoc972w9JfmhnwTTjCzCHa8mkamaU0//U
 qKOn3bRr9VfghwORvAeyDqo+nRPnAmy1kHZgDSeFixg8b0cJJ8Q4QZPRhJERO5CZ
 4RxWU1ILYZi0YKwDMyjkFOlZEkUdx8bfepcmhVzqX7afKDA5LX3UhTuDstz6N16A
 U7SxDy/vcXlVOb4d/Kh5dPXsLmgW+cDjqO/2CDm6O4CDIr+32iAwI47TQ0MY5ztg
 o1WtqG8y50RvShK2E+mQKnu18g4PIwTAJd8JmV1i0DOgDEB2Rh09yOGyZ3tIL7YC
 xFUGmrzKPDH17PstJPw2zZdS7kaTX0ity48q6/LXGhOzIxr9Xz8TMS7PK/7YcQLb
 grqTXbZfYTLvdf6lm5SteBjWuCZ56dqAjQyDLFmRWMSBgBkCZrXkugAw72jmSuN1
 OR4QSNvzhTraFDtP++8rnkM4mir406JtOcrX7TiBuX0C9jtbl9WKcDGSdqgohAXl
 yrXWJ4PJmgjSWlBXKEsw
 =uKfH
 -----END PGP SIGNATURE-----
 

fix CFRelease NULL crash on M5 Pro/Max (#29)

PR #27 added NULL checks in getFrequency() to handle missing
IOKit voltage-states properties on M5 chips (which lack E-cores).
However, the CFRelease calls added in PR #26 were not similarly
guarded. CFRelease(NULL) is undefined behavior per Apple docs and
crashes the process.

This adds NULL guards to the CFRelease calls so they are skipped
when the IOKit properties don't exist.

Fixes the remaining segfault from #25 that v0.2.0 did not resolve.