From: "Cyrill V. Gorcunov" <gorcunov@gmail.com>

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>
---

 drivers/i2c/chips/ds1374.c |    4 ++++
 1 files changed, 4 insertions(+)

diff -puN drivers/i2c/chips/ds1374.c~ds1374-check-for-workqueue-creation drivers/i2c/chips/ds1374.c
--- a/drivers/i2c/chips/ds1374.c~ds1374-check-for-workqueue-creation
+++ a/drivers/i2c/chips/ds1374.c
@@ -207,6 +207,10 @@ static int ds1374_probe(struct i2c_adapt
 	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);
_