SUNRPC: Fix use of copy_to_user() in gss_pipe_upcall()

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The gss_pipe_upcall() function expects the copy_to_user() function to
return a negative error value if the call fails, but copy_to_user()
returns an unsigned long number of bytes that couldn't be copied.

Can rpc_pipefs actually retry a partially completed upcall read?  If
not, then gss_pipe_upcall() should punt any partial read, just like the
upcall logic in net/sunrpc/cache.c.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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Chuck Lever 2007-12-20 14:54:27 -05:00 • committed by Trond Myklebust

parent 59dca3b28c

commit 7df089952f

1 changed files with 6 additions and 7 deletions

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net/sunrpc/auth_gss/auth_gss.c

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