[Bug malloc/22611] malloc/tst-realloc wrongly assumes that errno must not be modified in case of success

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https://sourceware.org/bugzilla/show_bug.cgi?id=22611

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7a64940a59cfbcfd9ac3895df3a5c00ced4ca268

commit 7a64940a59cfbcfd9ac3895df3a5c00ced4ca268
Author: Aurelien Jarno <aurelien@aurel32.net>
Date:   Fri Dec 29 14:44:57 2017 +0100

    tst-realloc: do not check for errno on success [BZ #22611]

    POSIX explicitly says that applications should check errno only after
    failure, so the errno value can be clobbered on success as long as it
    is not set to zero.

    Changelog:
        [BZ #22611]
        * malloc/tst-realloc.c (do_test): Remove the test checking that errno
        is unchanged on success.
    (cherry picked from commit f8aa69be445f65bb36cb3ae9291423600da7d6d2)

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog            |    6 ++++++
 malloc/tst-realloc.c |    4 ----
 2 files changed, 6 insertions(+), 4 deletions(-)

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