linux-kernel - [PATCH] tty: pass return value of spi_register

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Message-Id: <20181226012619.70607-1-kjlu@umn.edu>
Date:   Tue, 25 Dec 2018 19:26:19 -0600
From:   Kangjie Lu <kjlu@....edu>
To:     kjlu@....edu
Cc:     pakki001@....edu, Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] tty: pass return value of spi_register_driver

spi_register_driver() may fail, so let's pass its return value upstream.

Signed-off-by: Kangjie Lu <kjlu@....edu>
---
 drivers/tty/serial/max310x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 3db48fcd6068..55e73646fcd2 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1470,10 +1470,10 @@ static int __init max310x_uart_init(void)
 		return ret;
 
 #ifdef CONFIG_SPI_MASTER
-	spi_register_driver(&max310x_spi_driver);
+	ret = spi_register_driver(&max310x_spi_driver);
 #endif
 
-	return 0;
+	return ret;
 }
 module_init(max310x_uart_init);
 
-- 
2.17.2 (Apple Git-113)