Worked on reliability improvements for the geerlingguy/linux ISM driver, focusing on resolving concurrency-related defects in the Linux kernel. Addressed stability issues by implementing spinlock-based serialization within the ism_cmd() function, ensuring that only one command executes at a time and preventing data corruption and device error states. This approach fixed PEC 2 and PEC 3A errors, directly improving system uptime for users of ISM hardware. The work demonstrated expertise in C, concurrency management, and kernel development, with targeted debugging and low-level synchronization techniques applied to enhance driver stability and error handling in a production Linux environment.