Worked on the Linux kernel driver for Cros EC Type-C integration, focusing on improving system stability and reliability. Addressed a concurrency issue in the geerlingguy/linux repository by implementing a guard to ensure the ec platform device pointer was valid before use, thereby preventing null pointer dereference during concurrent initialization. This targeted fix reduced the risk of crashes during boot-time, enhancing overall device driver robustness. Utilized C for kernel development, applying expertise in device drivers to deliver a precise solution that improved code quality. The work emphasized careful validation and defensive programming to maintain system integrity in complex initialization scenarios.