isci: fix oem parameter validation on single controller skus
authorDan Williams <dan.j.williams@intel.com>
Mon, 30 Apr 2012 18:57:44 +0000 (11:57 -0700)
committerDan Williams <dan.j.williams@intel.com>
Thu, 17 May 2012 19:27:29 +0000 (12:27 -0700)
commitfc25f79af321c01a739150ba2c09435cf977a63d
treeb251a8a7399c9e991d084857b2d1a7b5c07c24e2
parent08e73be56b6b2e5459638481a54b755ed562ada8
isci: fix oem parameter validation on single controller skus

OEM parameters [1] are parsed from the platform option-rom / efi
driver.  By default the driver was validating the parameters for the
dual-controller case, but in single-controller case only the first set
of parameters may be valid.

Limit the validation to the number of actual controllers detected
otherwise the driver may fail to parse the valid parameters leading to
driver-load or runtime failures.

[1] the platform specific set of phy address, configuration,and analog
    tuning values

[stable v3.0+]
Cc: <stable@vger.kernel.org>
Reported-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
drivers/scsi/isci/init.c