media: solo6x10: Use devm functions

Let devm handle the life cycle of the irq request.

Makes smatch happier:

drivers/media/pci/solo6x10/solo6x10-core.c:631 solo_pci_probe() warn: 'pdev' from pci_request_regions() not released on lines: 631.
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/pci/solo6x10/solo6x10-core.c

@@ -144,7 +144,6 @@ static void free_solo_dev(struct solo_dev *solo_dev)
 
 		/* Now cleanup the PCI device */
 		solo_irq_off(solo_dev, ~0);
-		free_irq(pdev->irq, solo_dev);
 	}
 
 	pci_disable_device(pdev);
@@ -544,8 +543,8 @@ static int solo_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	/* PLL locking time of 1ms */
 	mdelay(1);
 
-	ret = request_irq(pdev->irq, solo_isr, IRQF_SHARED, SOLO6X10_NAME,
-			  solo_dev);
+	ret = devm_request_irq(&pdev->dev, pdev->irq, solo_isr, IRQF_SHARED,
+			       SOLO6X10_NAME, solo_dev);
 	if (ret)
 		goto fail_probe;