debugfs: fix segfault on "stat" command with no open fs

This is a regression from commit
8fdf29117f922419bd5b3f741e5d554b1d5b8893, which attempts to access
current_fs via a feature check before we check that it's open.

Just moving the feature check below the open check should fix it.

Reported-by: Andrew Hecox <ahecox@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
1 file changed