NFS: return -ENOKEY when the upcall fails to map the name

This allows the normal error-paths to handle the error, rather than
making a special call to complete_request_key() just for this instance.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Tested-by: William Dauchy <wdauchy@gmail.com>
Cc: stable@vger.kernel.org [>= 3.4]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index 6703c73307a5b28cfc17fc20234e853599d2c835..a850079467d85f149d997b9c96176c9a0829be0d 100644 (file)
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -760,9 +760,8 @@ idmap_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
        }
 
        if (!(im.im_status & IDMAP_STATUS_SUCCESS)) {
-               ret = mlen;
-               complete_request_key(cons, -ENOKEY);
-               goto out_incomplete;
+               ret = -ENOKEY;
+               goto out;
        }
 
        namelen_in = strnlen(im.im_name, IDMAP_NAMESZ);
@@ -779,7 +778,6 @@ idmap_pipe_downcall(struct file *filp, const char __user *src, size_t mlen)
 
 out:
        complete_request_key(cons, ret);
-out_incomplete:
        return ret;
 }