From 99e4b98dbe3ad1fe38a74d12c3b8d44a55930de4 Mon Sep 17 00:00:00 2001
From: Michael Welling <mwelling@ieee.org>
Date: Wed, 16 Apr 2014 20:00:24 -0500
Subject: [PATCH] gpio: mcp23s08: Bug fix of SPI device tree registration.

The chips variable needs to be incremented for each chip that is
found in the spi_present_mask when registering via device tree.
Without this and the checking a negative index is passed to the
data->chip array in a subsequent loop.

Cc: stable@vger.kernel.org
Signed-off-by: Michael Welling <mwelling@ieee.org>
Acked-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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