tree f7831ace6032ff030e3e83df5e17a8c503f454e0
parent 0026b4cfc864e6cbd32ef911235e39b31de54aba
author Siarhei Vishniakou <svv@google.com> 1674506461 -0800
committer Siarhei Vishniakou <svv@google.com> 1674564737 -0800

Validate axes and led labels correctly

Before this CL, a number of checks for kl file validity were incorrect.
Some of the APIs were supposed to return an invalid value, but instead
were always returning a valid value, no matter what the input was.

Correct these values by switching to std::optional.

Bug: 266400536
Test: m libinput_tests && adb sync data && adb shell -t /data/nativetest64/libinput_tests/libinput_tests
Change-Id: I4ef45f3249dca4f4f033fb85e9fecbc2ad1f1395