kclient: return 0 from readpage on success

diff --git a/src/kernel/addr.c b/src/kernel/addr.c
index 6bef25b9a06e3e52ffe5bf99a6b0294e40307750..62494ecf3841d972287ca3b71ea2bceff85d0c91 100644 (file)
--- a/src/kernel/addr.c
+++ b/src/kernel/addr.c
@@ -240,7 +240,7 @@ static int readpage_nounlock(struct file *filp, struct page *page)
        SetPageUptodate(page);
 
 out:
-       return err;
+       return err < 0 ? err : 0;
 }
 
 static int ceph_readpage(struct file *filp, struct page *page)