[patches] Backport pthread_getattr_np fix

[Paul Brook <paul@xxxxxxxxxxxxxxxx>]

I'd like to backport the patch below to the eglibc 2.5 branch. 

The original submission can be found there: 
http://sources.redhat.com/ml/libc-hacker/2007-06/msg00018.html
I'm currently working with an arm target that experiences this crash.

This patch is already present on later branches.

Ok?

Paul

2008-04-16  Paul Brook  <paul@xxxxxxxxxxxxxxxx>

	Backport:
	2007-06-22  Jakub Jelinek  <jakub@xxxxxxxxxx>
	* pthread_getattr_np.c (pthread_getattr_np): Clear cpuset and
	cpusetsize if pthread_getaffinity_np failed with ENOSYS.

--- libc/nptl/pthread_getattr_np.c.jj	2007-06-04 08:42:05.000000000 +0200
+++ libc/nptl/pthread_getattr_np.c	2007-06-22 11:41:48.000000000 +0200
@@ -164,8 +164,12 @@ pthread_getattr_np (thread_id, attr)
 	{
 	  free (cpuset);
 	  if (ret == ENOSYS)
-	    /* There is no such functionality.  */
-	    ret = 0;
+	    {	  
+	      /* There is no such functionality.  */
+	      ret = 0;
+	      iattr->cpuset = NULL;
+	      iattr->cpusetsize = 0;
+	    }
 	}
     }