cmd: ubi: reorganize command messages

This patch moves normal subcommand messages into the main command function.
This will allow current and potential api functions being called with clean
output on success.

A new function ubi_require_volume() is added for finding and printing error
message if volume not found. The original ubi_find_volume() will be silent
for being an api function.

To avoid ubi_require_volume() being called twice for volume read/remove,
some changes are required:
- The parameter of ubi_remove_vol() is changed to accept
'struct ubi_volume *' directly.
- The original ubi_volume_read() is renamed to __ubi_volume_read, with its
  first parameter changed to accept also 'struct ubi_volume *' directly.
- A new ubi_volume_read() is added to wrap __ubi_volume_read() to accept
  volume name as its first parameter.

Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Weijie Gao <[email protected]>

0 files changed, 0 insertions, 0 deletions