progressbar: fix mutex locking in progressbar_info()

progressbar_error() is called by threads which can be cancelled, so
we need to protect the lock with pthread cleanup code.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
1 file changed
tree: a36a4f8437c068dfdc79ccde9fb058b4b3868605
  1. kernel/
  2. kernel-2.4/
  3. squashfs-tools/
  4. README