pipe: fix failure to return error code on ->confirm()

The arguments were transposed, we want to assign the error code to
'ret', which is being returned.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/pipe.c b/fs/pipe.c
index 279eef96c51c..37eb1ebeaa90 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -382,7 +382,7 @@ pipe_read(struct kiocb *iocb, const struct iovec *_iov,
                         error = ops->confirm(pipe, buf);
                         if (error) {
                                 if (!ret)
-                                        error = ret;
+                                        ret = error;
                                 break;
                         }