[PATCH v2] serial: mps2-uart: Check for error irq

[Jiasheng Jiang]

On Thursday, December 23, 2021, Andy Shevchenko <andy.shevchenko at gmail.com> wrote:
> Check the types.

That's right.
I correct previous version, using error variable to check.

Fixes: 041f031def33 ("serial: mps2-uart: add MPS2 UART driver")
Signed-off-by: Jiasheng Jiang <jiasheng at iscas.ac.cn>
---
Changelog:

v1 -> v2

*Change 1.USing error variable to check.
---
 drivers/tty/serial/mps2-uart.c | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/mps2-uart.c b/drivers/tty/serial/mps2-uart.c
index 587b42f754cb..24a52300d8d9 100644
--- a/drivers/tty/serial/mps2-uart.c
+++ b/drivers/tty/serial/mps2-uart.c
@@ -584,11 +584,29 @@ static int mps2_init_port(struct platform_device *pdev,
 
 
 	if (mps_port->flags & UART_PORT_COMBINED_IRQ) {
-		mps_port->port.irq = platform_get_irq(pdev, 0);
+		ret = platform_get_irq(pdev, 0);
+		if (ret < 0)
+			return ret;
+
+		mps_port->port.irq = ret;
 	} else {
-		mps_port->rx_irq = platform_get_irq(pdev, 0);
-		mps_port->tx_irq = platform_get_irq(pdev, 1);
-		mps_port->port.irq = platform_get_irq(pdev, 2);
+		ret = platform_get_irq(pdev, 0);
+		if (ret < 0)
+			return ret;
+
+		mps_port->rx_irq = ret;
+
+		ret = platform_get_irq(pdev, 1);
+		if (ret < 0)
+			return ret;
+
+		mps_port->tx_irq = ret;
+
+		ret = platform_get_irq(pdev, 2);
+		if (ret < 0)
+			return ret;
+
+		mps_port->port.irq = ret;
 	}
 
 	return ret;
-- 
2.25.1