Function
elf_end() is used to release the resources associated with an ELF descriptor pointed to by argument
elf. This descriptor must have been allocated by a previous call to
elf_begin(3) or
elf_memory(3). For programming convenience, a NULL value is permitted for argument
elf.
A call to
elf_end() decrements the activation count for descriptor
elf by one. The resources associated with the descriptor are only released with its activation count goes to zero.
Once function
elf_end() returns zero, the ELF descriptor
elf will no longer be valid and should not be used further.