From c706a7954a160ddc1a29e1dfe4dc1f58e2b95023 Mon Sep 17 00:00:00 2001
From: Robert Elliott <elliott@hp.com>
Date: Fri, 23 Jan 2015 16:45:01 -0600
Subject: [PATCH] hpsa: detect and report failures changing controller
 transport modes

Detect failues when attempting to change controller to use simple
or performant transport modes (mode change ack) rather than just
proceeding ahead after timeouts.

Return values are added to:
	hpsa_put_ctlr_into_performant_mode
	hpsa_wait_for_mode_change_ack
and all their callers check/propagate the result.

More consistency in printing errors and whether
dev_err is used.

Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Signed-off-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
Reading git-format-patch failed