ARM: gemini: Fix race in installing GPIO chained IRQ handler
authorRussell King <rmk+kernel@arm.linux.org.uk>
Tue, 16 Jun 2015 22:06:35 +0000 (23:06 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Thu, 18 Jun 2015 12:03:08 +0000 (14:03 +0200)
commit7f77c5c39d2eb50e7362f29f654a2c221b6a5b83
treef44fe73417f42f50820df588638e38a208963ab3
parent86f5e73304651c3eeec0a1fce90bb3e1d610e3b9
ARM: gemini: Fix race in installing GPIO chained IRQ handler

The gemini code was installing its chained interrupt handler (which
enables the interrupt) before it was setting its data, which is bad if
the IRQ was previously pending.  Avoid this problem by converting it 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/E1Z4z07-0002SO-Gv@rmk-PC.arm.linux.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/arm/mach-gemini/gpio.c