xen/platform-pci: add missing free_irq() in error path

[ Upstream commit c53717e1 ]

free_irq() is missing in case of error in platform_pci_probe(), fix that.

Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Link: https://lore.kernel.org/r/20221114112124.1965611-1-ruanjinjie@huawei.com


Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>