tree 463208d1c664959e9d7a99ee31d511da517146be
parent beec19ff21d41c84dbbc2ab8d0df25147912ff59
author Darrick J. Wong <darrick.wong@oracle.com> 1415413574 -0500
committer Theodore Ts'o <tytso@mit.edu> 1415413574 -0500

dumpe2fs: don't crash when the user provides no block device argument

If the user doesn't provide any arguments, the guard fails to run and
the whole thing segfaults on ext2fs_open2().  Don't do that.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>