tree d77670070abc662b6b14b5a9f9d6c08a56a476a9
parent 9dfb7808fb05643b0d06df7411b94d9546696bf1
author Jeff Garzik <jgarzik@pobox.com> 1130608701 -0400
committer Jeff Garzik <jgarzik@pobox.com> 1130608701 -0400

[libata] ensure ->tf_read() hook reads Status and Error registers

We want ->tf_read() to get a complete snapshot of all taskfile
registers, without requiring the callers to manually call
ata_chk_status() and ata_chk_err() themselves.

This also fixes a minor bug in sata_vsc where the lower bits of the
feature register were incorrectly placed in the HOB (high order bits)
portion of struct ata_taskfile.