From: Jonathan Cameron <jic23@kernel.org>
Date: Wed, 15 Feb 2012 19:48:00 +0000 (+0000)
Subject: staging:iio:core set the iio_dev.info pointer to null on unregister under lock.
X-Git-Tag: v3.4-rc1~186^2~115
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ac917a81117ce0286847666b55dd265f6cda8383;p=pandora-kernel.git

staging:iio:core set the iio_dev.info pointer to null on unregister under lock.

This prevents use of provider callbacks after it has been unregistered.
Note that all code using this that can be called from a consumer *must*
check the pointer before using and hold the info_exist_lock throughout
the usage of the callbacks in info.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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