[PATCH 2/3] serial: mxs-auart: Check for platform_get_irq() error

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From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>

We should check whether platform_get_irq() failed, and in the case of error
this needs to be propagated. 

Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
---
 drivers/tty/serial/mxs-auart.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 767fdda..b54b6a2 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -1265,6 +1265,9 @@ static int mxs_auart_probe(struct platform_device *pdev)
 	s->mctrl_prev = 0;
 
 	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
 	s->port.irq = irq;
 	ret = devm_request_irq(&pdev->dev, irq, mxs_auart_irq_handle, 0,
 			       dev_name(&pdev->dev), s);
-- 
1.9.1

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