CRIS v32: Change drivers/i2c.c locking.

- Change spin_lock + local_irq_save into spin_lock_irqsave
- Change spin_unlock + local_irq_restore into spin_unlock_irqrestore
- Return ENOTTY if ioctl is not recognized as a cris ioctl.
- Make init functions static.

arch/cris/arch-v32/drivers/i2c.c

···
 	unsigned char value;
 	unsigned long flags;
 
-	spin_lock(&i2c_lock);
+	spin_lock_irqsave(&i2c_lock, flags);
 
 	do {
 		error = 0;
-		/*
-		 * we don't like to be interrupted
-		 */
-		local_irq_save(flags);
 
 		i2c_start();
 		/*
···
 		 * end byte stream
 		 */
 		i2c_stop();
-		/*
-		 * enable interrupt again
-		 */
-		local_irq_restore(flags);
 
 	} while (error && cntr--);
 
 	i2c_delay(CLOCK_LOW_TIME);
 
-	spin_unlock(&i2c_lock);
+	spin_unlock_irqrestore(&i2c_lock, flags);
 
 	return -error;
 }
···
 	int error, cntr = 3;
 	unsigned long flags;
 
-	spin_lock(&i2c_lock);
+	spin_lock_irqsave(&i2c_lock, flags);
 
 	do {
 		error = 0;
 		memset(data, 0, nbytes);
-		/*
-		 * we don't like to be interrupted
-		 */
-		local_irq_save(flags);
 		/*
 		 * generate start condition
 		 */
···
 		 * end sequence
 		 */
 		i2c_stop();
-		/*
-		 * enable interrupt again
-		 */
-		local_irq_restore(flags);
 	} while (error && cntr--);
 
-	spin_unlock(&i2c_lock);
+	spin_unlock_irqrestore(&i2c_lock, flags);
 
 	return -error;
 }
···
 	int error, cntr = 3;
 	unsigned long flags;
 
-	spin_lock(&i2c_lock);
+	spin_lock_irqsave(&i2c_lock, flags);
 
 	do {
 		error = 0;
-		/*
-		 * we don't like to be interrupted
-		 */
-                local_irq_save(flags);
 
 		i2c_start();
 		/*
···
 		 * end byte stream
 		 */
 		i2c_stop();
-		/*
-		 * enable interrupt again
-		 */
-		local_irq_restore(flags);
 	} while(error && cntr--);
 
 	i2c_delay(CLOCK_LOW_TIME);
 
-	spin_unlock(&i2c_lock);
+	spin_unlock_irqrestore(&i2c_lock, flags);
 
 	return -error;
 }
···
 	int error, cntr = 3;
 	unsigned long flags;
 
-	spin_lock(&i2c_lock);
+	spin_lock_irqsave(&i2c_lock, flags);
 
 	do {
 		error = 0;
-		/*
-		 * we don't like to be interrupted
-		 */
-                local_irq_save(flags);
 		/*
 		 * generate start condition
 		 */
···
 		 * end sequence
 		 */
 		i2c_stop();
-		/*
-		 * enable interrupt again
-		 */
-		local_irq_restore(flags);
 
 	} while(error && cntr--);
 
-	spin_unlock(&i2c_lock);
+	spin_unlock_irqrestore(&i2c_lock, flags);
 
 	return b;
 }
···
 	  unsigned int cmd, unsigned long arg)
 {
 	if(_IOC_TYPE(cmd) != ETRAXI2C_IOCTYPE) {
-		return -EINVAL;
+		return -ENOTTY;
 	}
 
 	switch (_IOC_NR(cmd)) {
···
 	.release =  i2c_release,
 };
 
-int __init
-i2c_init(void)
+static int __init i2c_init(void)
 {
 	static int res;
 	static int first = 1;
···
 }
 
 
-int __init
-i2c_register(void)
+static int __init i2c_register(void)
 {
-
 	int res;
 
 	res = i2c_init();
···
 	/* register char device */
 
 	res = register_chrdev(I2C_MAJOR, i2c_name, &i2c_fops);
-	if(res < 0) {
+	if (res < 0) {
 		printk(KERN_ERR "i2c: couldn't get a major number.\n");
 		return res;
 	}
···
 
 	return 0;
 }
-
 /* this makes sure that i2c_init is called during boot */
-
 module_init(i2c_register);
 
 /****************** END OF FILE i2c.c ********************************/