If pic_poll_read finds no pending IRQ and return a spurious one instead, no PIC state is changed, thus we do not need to call pic_update_irq. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Read the documentation in qemu-doc.html. Fabrice Bellard.
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