tree 8fe8d2969939613c533c74582fc47c34c39cd811
parent 8ead0bd175848729fc25415b840068e40b2998ad
author Stephen M. Cameron <scameron@beardog.cce.hp.com> 1311272165 -0500
committer James Bottomley <JBottomley@Parallels.com> 1311765506 +0400

[SCSI] hpsa: do not attempt to read from a write-only register

Most smartarrays tolerate it, but a few new ones don't.
Without this change some newer Smart Arrays will lock up
and i/o will grind to a halt.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>