ocfs2: fix a typing error in ocfs2_direct_IO_write

Only when direct IO succeeds we need consider zeroing out in case of
cluster not aligned.

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 44db180..0c2848a 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -771,7 +771,7 @@
 			if (ret < 0)
 				mlog_errno(ret);
 		}
-	} else if (written < 0 && append_write && !is_overwrite &&
+	} else if (written > 0 && append_write && !is_overwrite &&
 			!cluster_align) {
 		u32 p_cpos = 0;
 		u32 v_cpos = ocfs2_bytes_to_clusters(osb->sb, offset);