A question about display_archive in binutils

[Nan Xiao]

Hi maintainers of binutils,

Greetings from me!

I am reading bintutils code, and come across this commit
(https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=896ca0981329171639b1fe0b934393a79ef4fdfb)
about display_archive function in both nm.c and size.c:

if (last_arfile != NULL)
-       bfd_close (last_arfile);
+       {
+         bfd_close (last_arfile);
+
+         /* PR 17512: file: a244edbc.  */
+         if (last_arfile == arfile)
+           return;
+       }

I am a little confused why there will occur last_arfile is equal
to arfile. So it means bfd_openr_next_archived_file allocates the
same memory in 2 consecutive times?

Thanks very much in advance!

Best Regards
Nan Xiao