ubinfo: fix `--all' for non-consecutive device numbers

When we have assigned non-consecutive device numbers to our UBI devices,
then we run `ubinfo --all', we get errors once ubinfo tries to process the
devices in the "hole". For instance, suppose there are two UBI devices,
/dev/ubi0 and /dev/ubi10; then, ubinfo will fail trying to open /dev/ubi1
with:

  ubinfo: error!: cannot get information about UBI device 1
         error 2 (No such file or directory)

This patch adds a check to first see if device is present, then continue
to the next ID if it doesn't exist.

Reported-by: Brian Foster <brian.foster@maxim-ic.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

0 files changed, 0 insertions, 0 deletions