close device if mount fails after device opened.
tree4dceee1ebd8d1ca79e25c20b564ffc3bebe5354e
-rwxr-xr-x 2422 LICENSE
-rwxr-xr-x 2014 Makefile
drwxr-xr-x - boot
drwxr-xr-x - commands
drwxr-xr-x - docs
drwxr-xr-x - drivers
drwxr-xr-x - etc
drwxr-xr-x - include
drwxr-xr-x - kernel
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drwxr-xr-x - test
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