From 0ca9493b4c0f4fb7796add422ba5ecc672c9fa16 Mon Sep 17 00:00:00 2001
From: "Cyrill V. Gorcunov" <gorcunov@gmail.com>
Date: Thu, 22 Mar 2007 19:49:01 +0100
Subject: [PATCH] i2c/ds1374: Check workqueue creation status

Check if workqueue creation failed.  Further usage of NULL pointed
workqueue is not good I guess ;)

Signed-off-by: Cyrill V. Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/i2c/chips/ds1374.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/i2c/chips/ds1374.c b/drivers/i2c/chips/ds1374.c
index 15edf40828b..8a2ff0c114d 100644
--- a/drivers/i2c/chips/ds1374.c
+++ b/drivers/i2c/chips/ds1374.c
@@ -207,6 +207,10 @@ static int ds1374_probe(struct i2c_adapter *adap, int addr, int kind)
 	client->driver = &ds1374_driver;
 
 	ds1374_workqueue = create_singlethread_workqueue("ds1374");
+	if (!ds1374_workqueue) {
+		kfree(client);
+		return -ENOMEM;	/* most expected reason */
+	}
 
 	if ((rc = i2c_attach_client(client)) != 0) {
 		kfree(client);
-- 
2.41.0