From 7e35f20d44321b20777020ad067d39116d142013 Mon Sep 17 00:00:00 2001
From: Eric Engestrom <eric.engestrom@intel.com>
Date: Thu, 16 May 2019 14:57:07 +0100
Subject: [PATCH] util/os_file: actually return the error read() gave us

Fixes: 316964709e21286c2af5 "util: add os_read_file() helper"
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
---
 src/util/os_file.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/util/os_file.c b/src/util/os_file.c
index 246fd32fdf6..da17d12b50e 100644
--- a/src/util/os_file.c
+++ b/src/util/os_file.c
@@ -29,8 +29,10 @@ readN(int fd, char *buf, size_t len)
       if (ret == -EINTR || ret == -EAGAIN)
          continue;
 
-      if (ret <= 0)
+      if (ret <= 0) {
+         err = ret;
          break;
+      }
 
       total += ret;
    } while (total != len);
-- 
2.30.2