From: Kefeng Wang <wangkefeng.wang@huawei.com>
Date: Sat, 24 Sep 2016 09:14:24 +0000 (+0800)
Subject: tty: amba-pl011: Don't complain on -EPROBE_DEFER when no irq
X-Git-Tag: v4.9-rc1~147^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=35aa33cf0b35af6f2f1d8fb81eea8cf723c65239;p=thirdparty%2Fkernel%2Flinux.git

tty: amba-pl011: Don't complain on -EPROBE_DEFER when no irq

Don't complain on -EPROBE_DEFER when attempting to get the irq.
the driver probe will be retried later.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 2d9ffab16ffeb..e2c33b9528d82 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2582,7 +2582,8 @@ static int sbsa_uart_probe(struct platform_device *pdev)
 
 	ret = platform_get_irq(pdev, 0);
 	if (ret < 0) {
-		dev_err(&pdev->dev, "cannot obtain irq\n");
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "cannot obtain irq\n");
 		return ret;
 	}
 	uap->port.irq	= ret;