[/serial/serial/VirtualSerial2]: Potential memory leak?

[SkyArbor]

Which is the area where the sample lives?

/serial/

Describe the issue

New to Windows driver programming, please correct me if I'm wrong!

In serial/VirtualSerial2/ComPort/queue.c, function EvtIoWrite has some return branches that neither store request or complete the pending request _In_ WDFREQUEST Request.

[stacyrggqmm-ui]

It seems that in the EvtIoWrite function, there are code paths that may not free allocated memory or handle error states correctly, potentially leading to memory leaks. Especially in branches where an error occurs after memory allocation, ensure that all allocated buffers are properly released before exiting the function. Consider using a consistent cleanup pattern with a single exit point for better manageability of resource deallocation in such scenarios.