linux-kernel - [PATCH] platform/chrome: null check create_singlethread

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Date:   Wed, 11 Sep 2019 15:10:59 -0500
From:   Navid Emamdoost <navid.emamdoost@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     emamd001@....edu, smccaman@....edu, kjlu@....edu,
        Navid Emamdoost <navid.emamdoost@...il.com>,
        Benson Leung <bleung@...omium.org>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] platform/chrome: null check create_singlethread_workqueue

In cros_usbpd_logger_probe the return value of
create_singlethread_workqueue may be null, it should be checked.

Signed-off-by: Navid Emamdoost <navid.emamdoost@...il.com>
---
 drivers/platform/chrome/cros_usbpd_logger.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/platform/chrome/cros_usbpd_logger.c b/drivers/platform/chrome/cros_usbpd_logger.c
index 7c7b267626a0..c83397955cc3 100644
--- a/drivers/platform/chrome/cros_usbpd_logger.c
+++ b/drivers/platform/chrome/cros_usbpd_logger.c
@@ -209,6 +209,9 @@ static int cros_usbpd_logger_probe(struct platform_device *pd)
 	/* Retrieve PD event logs periodically */
 	INIT_DELAYED_WORK(&logger->log_work, cros_usbpd_log_check);
 	logger->log_workqueue =	create_singlethread_workqueue("cros_usbpd_log");
+	if (!logger->log_workqueue)
+		return -ENOMEM;
+
 	queue_delayed_work(logger->log_workqueue, &logger->log_work,
 			   CROS_USBPD_LOG_UPDATE_DELAY);
 
-- 
2.17.1