[OpenWrt-Devel] fstools: MTD driver - deadc0de marker

[Karl Vogel]

I ran into an issue on a platform using a JFFS2 partition where the
overlayfs mount was done with tmpfs. After some investigation the issue
seemed to happen in the mount_root binary, more specifically during the
mtd_volume_identify() function.

The code does the check:

  if (v->type == UBIVOLUME && deadc0de == 0xffffffff) {
      return FS_JFFS2;
  }

see
http://git.openwrt.org/project/fstools.git?p=project/fstools.git;a=blob;f=libfstools/mtd.c;h=156d166b5a2cc92f124852180782e5c2826be881;hb=HEAD#l215


However, in my case the volume type is NANDFLASH. Adding a v->type ==
NANDFLASH in this place, makes my system work, but I'm not entirely sure
why this deadc0de check was restricted to UBIVOLUME only?! Would a check
for NANDFLASH be acceptable here?

Regards,
Karl
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