>>> Replace malloc with calloc and add memory allocating check >> memset(…, 0, …) call by calloc()? > > Calloc returns zeroed-out memory. I propose to improve the change description considerably. >>> of comm_str before used. >> * Add also a null pointer check for the detection of a memory allocation failure. > > Which is exactly what Zhu has done? Can the commit message become nicer anyhow? … >> * How do you think about to omit the statement “fprintf(stderr, "Out of memory\n");”? > > Why? I imagine that a returned null pointer can eventually be sufficient already. Would you get helpful background information from the variable “errno”? Regards, Markus