From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Tue, 16 Jun 2015 22:06:40 +0000 (+0100)
Subject: gpio: gpio-mxc: Fix race in installing chained IRQ handler
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~167^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e65eea54e98566de2cbb10e710873bc5e34c6680;p=pandora-kernel.git

gpio: gpio-mxc: Fix race in installing chained IRQ handler

Fix a race where a pending interrupt could be received and the handler
called before the handler's data has been setup, by converting to
irq_set_chained_handler_and_data().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/E1Z4z0C-0002SX-Lj@rmk-PC.arm.linux.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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