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parport: serial: Retrieve IRQ vector with help of special getter 

pci_irq_vector() may be used to retrieve IRQ vector for a PCI device.
Use it instead of direct access.

Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210721150216.64823-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2021-07-21 18:02:16 +03:00 committed by Greg Kroah-Hartman
parent 09b18f2f3b
commit fa11c81ce2
1 changed files with 3 additions and 1 deletions
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4
drivers/parport/parport_serial.c
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@ -606,7 +606,9 @@ static int parport_register(struct pci_dev *dev, const struct pci_device_id *id)
"hi" as an offset (see SYBA
def.) */
/* TODO: test if sharing interrupts works */
irq = dev->irq;
irq = pci_irq_vector(dev, 0);
if (irq < 0)
return irq;
if (irq == 0)
irq = PARPORT_IRQ_NONE;
if (irq == PARPORT_IRQ_NONE) {