From: Jon Hunter <jon-hunter@ti.com>
Date: Mon, 11 Feb 2013 20:26:19 +0000 (-0600)
Subject: mfd: twl-core: Fix kernel panic on boot
X-Git-Tag: v3.9-rc1~92^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1765dbccaa5aa2db7b53dc765f0e636591876c03;p=pandora-kernel.git

mfd: twl-core: Fix kernel panic on boot

Commit 8a6aaa3 (mfd: twl-core: Collect global variables behind one
private structure (global)) removed the variable "inuse" that is used
to determine if the device has been initialised and now use the
twl_priv structure instead. This is causing the kernel to panic on
OMAP3+ devices using the twl driver, because we try to access the
twl_priv->ready member before checking if twl_priv is initialised. Fix
this and move this test to the beginning of the twl_i2c_read/write
function because twl_get_last_module() also uses the twl_priv structure.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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