mfd: max8997: Remove unused function max8997_irq_exit()

Utilise devm_*() managed resource helpers for freeing IRQs instead.

Reported-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Lee Jones <lee@kernel.org>

Author: lag-linaro

drivers/mfd/max8997-irq.c

@@ -335,7 +335,8 @@ int max8997_irq_init(struct max8997_dev *max8997)
 	}
 	max8997->irq_domain = domain;
 
-	ret = request_threaded_irq(max8997->irq, NULL, max8997_irq_thread,
+	ret = devm_request_threaded_irq(max8997->dev, max8997->irq, NULL,
+			max8997_irq_thread,
 			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 			"max8997-irq", max8997);
 
@@ -348,7 +349,8 @@ int max8997_irq_init(struct max8997_dev *max8997)
 	if (!max8997->ono)
 		return 0;
 
-	ret = request_threaded_irq(max8997->ono, NULL, max8997_irq_thread,
+	ret = devm_request_threaded_irq(max8997->dev, max8997->ono, NULL,
+			max8997_irq_thread,
 			IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING |
 			IRQF_ONESHOT, "max8997-ono", max8997);
 
@@ -358,12 +360,3 @@ int max8997_irq_init(struct max8997_dev *max8997)
 
 	return 0;
 }
-
-void max8997_irq_exit(struct max8997_dev *max8997)
-{
-	if (max8997->ono)
-		free_irq(max8997->ono, max8997);
-
-	if (max8997->irq)
-		free_irq(max8997->irq, max8997);
-}

include/linux/mfd/max8997-private.h

@@ -397,7 +397,6 @@ enum max8997_types {
 };
 
 extern int max8997_irq_init(struct max8997_dev *max8997);
-extern void max8997_irq_exit(struct max8997_dev *max8997);
 extern int max8997_irq_resume(struct max8997_dev *max8997);
 
 extern int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);