[PATCH 4/5] tty: amba-pl011: Don't complain on -EPROBE_DEFER when no irq

Kefeng Wang wangkefeng.wang at huawei.com
Sat Sep 24 02:14:24 PDT 2016


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

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




More information about the linux-arm-kernel mailing list