cp: revert a recent buggy change, and add a comment why it's wrong

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/coreutils/cp.c b/coreutils/cp.c
index 2c0b90bc9..9f6c12367 100644
--- a/coreutils/cp.c
+++ b/coreutils/cp.c
@@ -182,10 +182,12 @@ int cp_main(int argc, char **argv)
                 if (copy_file(*argv, dest, flags) < 0) {
                         status = EXIT_FAILURE;
                 }
-                free((void*)dest);
                 if (*++argv == last) {
+                        /* possibly leaking dest... */
                         break;
                 }
+                /* don't move up: dest may be == last and not malloced! */
+                free((void*)dest);
         }
 
         /* Exit. We are NOEXEC, not NOFORK. We do exit at the end of main() */