From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 10 Nov 2014 23:20:14 +0000 (-0700)
Subject: staging: comedi: addi_apci_1564: fix counter code in main driver source
X-Git-Tag: omap-for-v3.19/fixes-rc1~73^2~164
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3a2cf2f971b7128b1daff50abbd88c766b458544;p=pandora-kernel.git

staging: comedi: addi_apci_1564: fix counter code in main driver source

The Rev 1.0 APCI-1564 boards do not have counters.

Fix the code in the main driver source so that the I/O accesses to the
counters do not happen if the devpriv->counters member is not initialized.

This does not fix the code in hwdrv_apci1564.c. That code violates the
comedi API and is currently broken.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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