linux-kernel - [PATCH] staging: axis-fifo: add error handling of class

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Date:   Sat, 29 Sep 2018 00:25:27 +0300
From:   Alexey Khoroshilov <khoroshilov@...ras.ru>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jacob Feder <jacobsfeder@...il.com>
Cc:     Alexey Khoroshilov <khoroshilov@...ras.ru>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        ldv-project@...uxtesting.org
Subject: [PATCH] staging: axis-fifo: add error handling of class_create()

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru>
---
 drivers/staging/axis-fifo/axis-fifo.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/axis-fifo/axis-fifo.c b/drivers/staging/axis-fifo/axis-fifo.c
index abeee0ecc122..63c8efd1b8db 100644
--- a/drivers/staging/axis-fifo/axis-fifo.c
+++ b/drivers/staging/axis-fifo/axis-fifo.c
@@ -1089,6 +1089,8 @@ static int __init axis_fifo_init(void)
 	pr_info("axis-fifo driver loaded with parameters read_timeout = %i, write_timeout = %i\n",
 		read_timeout, write_timeout);
 	axis_fifo_driver_class = class_create(THIS_MODULE, DRIVER_NAME);
+	if (IS_ERR(axis_fifo_driver_class))
+		return PTR_ERR(axis_fifo_driver_class);
 	return platform_driver_register(&axis_fifo_driver);
 }
 
-- 
2.7.4