gpio: gpio-mxs: Fix race in installing chained IRQ handler
authorRussell King <rmk+kernel@arm.linux.org.uk>
Tue, 16 Jun 2015 22:06:45 +0000 (23:06 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Thu, 18 Jun 2015 12:03:08 +0000 (14:03 +0200)
commita44735f421b44724d52117358573f8ded473ecc7
tree8f539796b31845a82a4b2bb3f1318a62ee2f0339
parente65eea54e98566de2cbb10e710873bc5e34c6680
gpio: gpio-mxs: 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/E1Z4z0H-0002Sf-P9@rmk-PC.arm.linux.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
drivers/gpio/gpio-mxs.c