centos man page for kfree

KFREE(9)						    Memory Management in Linux							  KFREE(9)

NAME
       kfree - free previously allocated memory

SYNOPSIS
       void kfree(const void * objp);

ARGUMENTS
       objp
	   pointer returned by kmalloc.

DESCRIPTION
       If objp is NULL, no operation is performed.

       Don't free memory not originally allocated by kmalloc or you will run into trouble.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014								  KFREE(9)