[PATCH] usb: chipidea: ci_hdrc_imx: Propagate -EPROBE_DEFER from IRQ lookup

[phucduc.bui at gmail.com]

From: bui duc phuc <phucduc.bui at gmail.com>

Return -EPROBE_DEFER from platform_get_irq_optional() so the driver is
re-probed when the interrupt resource becomes available instead of
continuing probe without an IRQ.

Signed-off-by: bui duc phuc <phucduc.bui at gmail.com>
---
 drivers/usb/chipidea/ci_hdrc_imx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 56d2ba824a0b..f53d09e90010 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -525,6 +525,8 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 		data->supports_runtime_pm = true;
 
 	data->wakeup_irq = platform_get_irq_optional(pdev, 1);
+	if (data->wakeup_irq == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
 	if (data->wakeup_irq > 0) {
 		irq_name = devm_kasprintf(dev, GFP_KERNEL, "%s:wakeup", pdata.name);
 		if (!irq_name) {
-- 
2.43.0