tree 945a6e1daa221faae3d5bb308109642c3d993509
parent 7f2ab6432a5f3aeb2ecf131169a3d44569007f1c
author John Wedig <johnwedig@google.com> 1642026266 -0800
committer John Wedig <johnwedig@google.com> 1642094555 -0800

Check if mount point already exists

Typically, we create the mount point directory when we mount the
filesystem, and then we remove the directory when we unmount. Currently,
we aren't accounting for the case where the directory already exists,
e.g. if the BMC reboots while the filesystem is mounted.

This commit adds a check to see if the directory is already present. If
so, it won't try to create the directory again.

Tested:
1. Formatted an eMMC using the FormatLuks method, which also creates the
   mount point and mounts the filesystem.
2. Rebooted the BMC
3. Ran the Unlock method to unlock the LUKS device and mount the
   filesystem.

Signed-off-by: John Wedig <johnwedig@google.com>
Change-Id: I3e279c653b21f570b97e4d530a19e5ae30bf8719