xfs: global error sign conversion

Convert all the errors the core XFs code to negative error signs
like the rest of the kernel and remove all the sign conversion we
do in the interface layers.

Errors for conversion (and comparison) found via searches like:

$ git grep " E" fs/xfs
$ git grep "return E" fs/xfs
$ git grep " E[A-Z].*;$" fs/xfs

Negation points found via searches like:

$ git grep "= -[a-z,A-Z]" fs/xfs
$ git grep "return -[a-z,A-D,F-Z]" fs/xfs
$ git grep " -[a-z].*;" fs/xfs

[ with some bits I missed from Brian Foster ]

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index 8ec81bed7992..e92730c1d3ca 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -258,7 +258,7 @@ next_ag:
         if (*agp == NULLAGNUMBER)
                 return 0;
 
-        err = ENOMEM;
+        err = -ENOMEM;
         item = kmem_alloc(sizeof(*item), KM_MAYFAIL);
         if (!item)
                 goto out_put_ag;
@@ -268,7 +268,7 @@ next_ag:
 
         err = xfs_mru_cache_insert(mp->m_filestream, ip->i_ino, &item->mru);
         if (err) {
-                if (err == EEXIST)
+                if (err == -EEXIST)
                         err = 0;
                 goto out_free_item;
         }