NFS: Ensure that we break out of read/write_schedule_segment on error

Currently we do break out of the for() loop, but we also need to
break out of the enclosing do {} while()...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Fred Isaman <iisaman@netapp.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index e83545c4d36f..f30d5c26a763 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -396,7 +396,7 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_pageio_descriptor *de
                         pos += req_len;
                         count -= req_len;
                 }
-        } while (count != 0);
+        } while (count != 0 && result >= 0);
 
         kfree(pagevec);
 
@@ -692,6 +692,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_pageio_descriptor *d
                                 nfs_release_request(req);
                                 nfs_direct_release_pages(pagevec + i,
                                                          npages - i);
+                                break;
                         }
                         pgbase = 0;
                         bytes -= req_len;
@@ -700,7 +701,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_pageio_descriptor *d
                         pos += req_len;
                         count -= req_len;
                 }
-        } while (count != 0);
+        } while (count != 0 && result >= 0);
 
         kfree(pagevec);