On Thu, Nov 22, 2012 at 12:50:32PM +0800, Chen Gang wrote: > Hello Arnd Bergmann, Greg Kroah-Hartman > > in drivers/char/hpet.c:1009 > I suggest to add check for hdp->hd_nirqs whether equal or larger than 32 > (HPET_MAX_TIMERS) > the type of irqp->interrupt_count is u8 (include/acpi/acrestyp.h:349) > the type of hdp->hd_irq is "unsigned int hd_irq[HPET_MAX_TIMERS]" > (include/linux/hpet.h:99) > #define HPET_MAX_TIMERS (32) (include/linux/hpet.h:38) > > additional information: > acpi_register_gsi() not check the boundaries of how many irqs (at least, > unlimited for u8). > maybe (only maybe) the irqp->interrupt_count is always less than 32 by > hardware limitation. > I do not know whether it is a bug, so as a suggestion.
Care to send a patch that implements this? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
