Commit 4f4bda58 authored by Zhu Wang's avatar Zhu Wang Committed by Greg Kroah-Hartman
Browse files

usb: gadget: udc: gr_udc: Fix deferred probing 



When platform_get_irq() fails, it may return -EPROBE_DEFER, which
suggested deferred probing, it is very important to propagate it
upstream. We cannot override it with other error code.

Commit ce753ad1 ("platform: finally disallow IRQ0 in
platform_get_irq() and its ilk") makes sure IRQ0 is not returned.

Signed-off-by: default avatarZhu Wang <wangzhu9@huawei.com>
Link: https://lore.kernel.org/r/20230804110005.97061-1-wangzhu9@huawei.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d3af2f4c

drivers/usb/gadget/udc/gr_udc.c

+4 −4
Original line number Diff line number Diff line
@@ -2136,15 +2136,15 @@ static int gr_probe(struct platform_device *pdev) 
		return PTR_ERR(regs);



	dev->irq = platform_get_irq(pdev, 0);

	if (dev->irq <= 0)

		return -ENODEV;

	if (dev->irq < 0)

		return dev->irq;



	/* Some core configurations has separate irqs for IN and OUT events */

	dev->irqi = platform_get_irq(pdev, 1);

	if (dev->irqi > 0) {

		dev->irqo = platform_get_irq(pdev, 2);

		if (dev->irqo <= 0)

			return -ENODEV;

		if (dev->irqo < 0)

			return dev->irqo;

	} else {

		dev->irqi = 0;

	}