[PATCH 10/10] Document usage of multiple-instances of devpts

[sukadev at linux.vnet.ibm.com]

Serge E. Hallyn [serue at us.ibm.com] wrote:

| No luck yet finding my random lockup (it *should* be obvious), but do
| notice that you ignore the return value of get_sb_single() in
| init_pts_mount().  Certainly that should be fixed.

Good catch. Will fix it. Thanks,

Suka