ps2: don't deassert irq twice if queue is empty
Don't deassert the irq twice if the queue is empty. While the second deassertion doesn't do any harm, it's unnecessary. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Volker Rümelin <vr_qemu@t-online.de> Message-Id: <20210525181441.27768-3-vr_qemu@t-online.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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@ -520,7 +520,9 @@ uint32_t ps2_read_data(PS2State *s)
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/* reading deasserts IRQ */
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/* reading deasserts IRQ */
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s->update_irq(s->update_arg, 0);
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s->update_irq(s->update_arg, 0);
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/* reassert IRQs if data left */
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/* reassert IRQs if data left */
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s->update_irq(s->update_arg, q->count != 0);
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if (q->count) {
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s->update_irq(s->update_arg, 1);
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}
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}
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}
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return val;
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return val;
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}
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}
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