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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>