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NFS: Fix infinite loop in gss_create_upcall()
authorBryan Schumaker <bjschuma@netapp.com>
Wed, 13 Apr 2011 18:31:28 +0000 (14:31 -0400)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 13 Apr 2011 19:12:22 +0000 (15:12 -0400)
There can be an infinite loop if gss_create_upcall() is called without
the userspace program running.  To prevent this, we return -EACCES if
we notice that pipe_version hasn't changed (indicating that the pipe
has not been opened).

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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