virtio-mmio: add error check for platform_get_irq
in vm_find_vqs() irq has a wrong type so, in case of no IRQ resource defined, wrong parameter will be passed to request_irq() Signed-off-by: Ihor Matushchak <ihor.matushchak@foobox.net> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Ivan T. Ivanov <iivanov.xz@gmail.com>alistair/sunxi64-5.4-dsi
parent
211f70ff1d
commit
5e663f0410
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@ -463,9 +463,14 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned nvqs,
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struct irq_affinity *desc)
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struct irq_affinity *desc)
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{
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{
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struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
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struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
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unsigned int irq = platform_get_irq(vm_dev->pdev, 0);
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int irq = platform_get_irq(vm_dev->pdev, 0);
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int i, err, queue_idx = 0;
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int i, err, queue_idx = 0;
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if (irq < 0) {
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dev_err(&vdev->dev, "Cannot get IRQ resource\n");
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return irq;
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}
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err = request_irq(irq, vm_interrupt, IRQF_SHARED,
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err = request_irq(irq, vm_interrupt, IRQF_SHARED,
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dev_name(&vdev->dev), vm_dev);
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dev_name(&vdev->dev), vm_dev);
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if (err)
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if (err)
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