utils/uboot-envtools-mmc/patches/007-fsync.patch

   1 From 9ef3d800d08dd673ccb5b7a12a69e94394cf2167 Mon Sep 17 00:00:00 2001
   2 From: Michael Heimpold <mhei@heimpold.de>
   3 Date: Sat, 11 Aug 2012 21:33:46 +0200
   4 Subject: [PATCH] Ensure that data is written to disk
   5
   6 ---
   7  fw_env.c |   12 ++++++++++++
   8  1 files changed, 12 insertions(+), 0 deletions(-)
   9
  10 diff --git a/fw_env.c b/fw_env.c
  11 index bed8fae..ee15f33 100644
  12 --- a/fw_env.c
  13 +++ b/fw_env.c
  14 @@ -849,7 +849,19 @@ static int flash_io (int mode)
  15
  16                 rc = flash_write (fd_current, fd_target, dev_target);
  17
  18 +               if (fsync (fd_current)) {
  19 +                       fprintf (stderr,
  20 +                                "fsync failed on %s: %s\n",
  21 +                                DEVNAME (dev_current), strerror (errno));
  22 +               }
  23 +
  24                 if (HaveRedundEnv) {
  25 +                       if (fsync (fd_target)) {
  26 +                               fprintf (stderr,
  27 +                                        "fsync failed on %s: %s\n",
  28 +                                        DEVNAME (dev_current), strerror (errno));
  29 +                       }
  30 +
  31                         if (close (fd_target)) {
  32                                 fprintf (stderr,
  33                                         "I/O error on %s: %s\n",
  34 --
  35 1.7.2.5
  36