From fcef41057f40008693dd9161c973c2c6117e1433 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Sun, 25 Oct 2015 00:09:44 -0400
Subject: [PATCH] journal: return better error for empty files

When reading stuff, we should only return EIO when an actual read error
occured, not when we don't like the data for whatever reason.

We already return ENODATA for all other kinds of file truncation, hence
do the same for the most obvious kind, so that callers know what ENODATA
means.

(cherry picked from commit cfb571f30fd415304b2f674f1615dc861058c347)

Related: #1465759
---
 src/journal/journal-file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index ebc8e62305..2bb3a97574 100644
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -2693,7 +2693,7 @@ int journal_file_open(
         }
 
         if (f->last_stat.st_size < (off_t) HEADER_SIZE_MIN) {
-                r = -EIO;
+                r = -ENODATA;
                 goto fail;
         }