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xen/events: fix error code in xen_bind_pirq_msi_to_irq()
commit 7f3da4b698bcc21a6df0e7f114af71d53a3e26ac upstream. Return -ENOMEM if xen_irq_init() fails. currently the code returns an uninitialized variable or zero. Fixes: 5dd9ad32d775 ("xen/events: drop xen_allocate_irqs_dynamic()") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Juergen Gross <jgross@ssue.com> Link: https://lore.kernel.org/r/3b9ab040-a92e-4e35-b687-3a95890a9ace@moroto.mountain Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 3 additions and 1 deletions
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@ -1099,8 +1099,10 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
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for (i = 0; i < nvec; i++) {
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info = xen_irq_init(irq + i);
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if (!info)
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if (!info) {
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ret = -ENOMEM;
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goto error_irq;
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}
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irq_set_chip_and_handler_name(irq + i, &xen_pirq_chip, handle_edge_irq, name);
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