From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Fri, 9 Nov 2012 09:05:22 +0000 (+0530)
Subject: spi: Dont call master->setup if not populated
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~24^2~10^2~4^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=caae070c48f39b4f7312e7473f6d3576f426e7fb;p=pandora-kernel.git

spi: Dont call master->setup if not populated

Currently the master->setup() is called unconditionally.
The assumption is that every driver need to implement this
callback. This encourages drivers to populate empty functions
to prevent crashing.

This patch prevents the call of master->setup() if it is not
populated.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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