[PATCH] tty: serial: imx: Add return value check for platform_get_irq()

[Anson Huang]

RX irq is required, so add return value check for platform_get_irq().

Signed-off-by: Anson Huang <anson.hu...@nxp.com>
---
 drivers/tty/serial/imx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index f4d6810..f4023d9 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2252,6 +2252,8 @@ static int imx_uart_probe(struct platform_device *pdev)
                return PTR_ERR(base);
 
        rxirq = platform_get_irq(pdev, 0);
+       if (rxirq < 0)
+               return rxirq;
        txirq = platform_get_irq_optional(pdev, 1);
        rtsirq = platform_get_irq_optional(pdev, 2);
 
-- 
2.7.4