irqchip/gicv3-its: Add range check for number of allocated pages

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The number of pages for the its table may exceed the maximum of 256.
Adding a range check and limitting the number to its maximum.

Based on a patch from Tirumalesh Chalamarla <tchalamarla@cavium.com>.

Signed-off-by: Tirumalesh Chalamarla <tchalamarla@cavium.com>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1442869119-1814-2-git-send-email-rric@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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Robert Richter 2015-09-21 22:58:34 +02:00 • committed by Thomas Gleixner

parent 71f64340fc

commit 30f2136346

2 changed files with 11 additions and 1 deletions

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11

drivers/irqchip/irq-gic-v3-its.c

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1

include/linux/irqchip/arm-gic-v3.h

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