[PATCH] err2-27: i2o_claim_device() locking fix

Found by the Stanford locking checker
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/message/i2o/i2o_core.c

@@ -831,12 +831,14 @@ static int i2o_issue_claim(u32 cmd, struct i2o_controller *c, int tid, u32 type)
  
 int i2o_claim_device(struct i2o_device *d, struct i2o_handler *h)
 {
+	int ret = 0;
+
 	down(&i2o_configuration_lock);
 	if (d->owner) {
 		printk(KERN_INFO "Device claim called, but dev already owned by %s!",
 		       h->name);
-		up(&i2o_configuration_lock);
-		return -EBUSY;
+		ret = -EBUSY;
+		goto out;
 	}
 	d->owner=h;
 
@@ -844,10 +846,11 @@ int i2o_claim_device(struct i2o_device *d, struct i2o_handler *h)
 			   I2O_CLAIM_PRIMARY))
 	{
 		d->owner = NULL;
-		return -EBUSY;
+		ret = -EBUSY;
 	}
+out:
 	up(&i2o_configuration_lock);
-	return 0;
+	return ret;
 }
 
 /**