e2fsck: always make sure e2fsck_global_ctx is set

The e2fsck_global_ctx varible was only being set if HAVE_SIGNAL_H is
defined.  There are systems, such as Android, where this is not true.

This was causing e2fsck_set_bitmap_type() to seg fault since
e2fsck_global_ctx was not NULL.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: JP Abgrall <jpa@google.com>
1 file changed