[glibc/azanella/bz12683] nptl: Do not close the pipe on tst-cancel{2, 3}

[Adhemerval Zanella <azanella@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4b76322d31b7e37ba64ae3f9d93eaf9c2e79b8a9

commit 4b76322d31b7e37ba64ae3f9d93eaf9c2e79b8a9
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Thu Aug 15 09:06:24 2019 -0300

    nptl: Do not close the pipe on tst-cancel{2,3}
    
    This can cause a SIGPIPE before SIGCANCEL is processed, which makes
    write fail and the thread return an non expected result.
    
    Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.

Diff:
---
 nptl/tst-cancel2.c | 3 ---
 nptl/tst-cancel3.c | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/nptl/tst-cancel2.c b/nptl/tst-cancel2.c
index 1e86711596..1732980b0f 100644
--- a/nptl/tst-cancel2.c
+++ b/nptl/tst-cancel2.c
@@ -73,9 +73,6 @@ do_test (void)
       return 1;
     }
 
-  /* This will cause the write in the child to return.  */
-  close (fd[0]);
-
   if (pthread_join (th, &r) != 0)
     {
       puts ("join failed");
diff --git a/nptl/tst-cancel3.c b/nptl/tst-cancel3.c
index 0a531dbcdb..3a0acac5e2 100644
--- a/nptl/tst-cancel3.c
+++ b/nptl/tst-cancel3.c
@@ -75,9 +75,6 @@ do_test (void)
       return 1;
     }
 
-  /* This will cause the read in the child to return.  */
-  close (fd[0]);
-
   if (pthread_join (th, &r) != 0)
     {
       puts ("join failed");