tree 289239e1eb60168321e905c545aa2e2f3a2b5475
parent 5335b729064e03319cd2d5219770451dbb1d7f67
author Tejun Heo <htejun@gmail.com> 1184563780 +0900
committer Jeff Garzik <jeff@garzik.org> 1184932931 -0400

libata: make ->scr_read/write callbacks return error code

Convert ->scr_read/write callbacks to return error code to better
indicate failure.  This will help handling of SCR_NOTIFICATION.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>