usb: gadget: udc: bcm63xx: propagate errors from platform_get_irq()

The driver overrides the error codes returned by platform_get_irq() to
-ENXIO for some strange reason.  Switch to propagating the error codes
upstream.
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20211214204247.7172-2-s.shtylyov@omp.ruSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/gadget/udc/bcm63xx_udc.c

@@ -2321,8 +2321,10 @@ static int bcm63xx_udc_probe(struct platform_device *pdev)
 
 	/* IRQ resource #0: control interrupt (VBUS, speed, etc.) */
 	irq = platform_get_irq(pdev, 0);
-	if (irq < 0)
+	if (irq < 0) {
+		rc = irq;
 		goto out_uninit;
+	}
 	if (devm_request_irq(dev, irq, &bcm63xx_udc_ctrl_isr, 0,
 			     dev_name(dev), udc) < 0)
 		goto report_request_failure;
@@ -2330,8 +2332,10 @@ static int bcm63xx_udc_probe(struct platform_device *pdev)
 	/* IRQ resources #1-6: data interrupts for IUDMA channels 0-5 */
 	for (i = 0; i < BCM63XX_NUM_IUDMA; i++) {
 		irq = platform_get_irq(pdev, i + 1);
-		if (irq < 0)
+		if (irq < 0) {
+			rc = irq;
 			goto out_uninit;
+		}
 		if (devm_request_irq(dev, irq, &bcm63xx_udc_data_isr, 0,
 				     dev_name(dev), &udc->iudma[i]) < 0)
 			goto report_request_failure;