From: Cyrill V. Gorcunov <gorcunov@gmail.com>
Date: Thu, 22 Mar 2007 18:49:01 +0000 (+0100)
Subject: i2c/ds1374: Check workqueue creation status
X-Git-Tag: v2.6.21-rc5~44^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0ca9493b4c0f4fb7796add422ba5ecc672c9fa16;p=platform%2Fkernel%2Flinux-3.10.git

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>
---

diff --git a/drivers/i2c/chips/ds1374.c b/drivers/i2c/chips/ds1374.c
index 15edf40..8a2ff0c 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);