linux-kernel - [PATCH 4/5] tty: amba-pl011: Don't complain on -EPROBE

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Date:   Sat, 24 Sep 2016 17:14:24 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Wei Xu <xuwei5@...ilicon.com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        <linux-arm-kernel@...ts.infradead.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>, <majun258@...wei.com>,
        <guohanjun@...wei.com>, <linux-kernel@...r.kernel.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Russell King <linux@...linux.org.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 4/5] 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@...linux.org.uk>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 drivers/tty/serial/amba-pl011.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 8a9e213..7d9b291 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2555,7 +2555,8 @@ 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;
-- 
1.7.12.4